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Alpinestars Viper Air Jacket
  • Black/Black/Black
  • Black/White
  • Black/White
  • White/Blue/Black
  • Black/Flo Yellow/White
  • Black/Red/White

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Video Reviews (2)

Alpinestars Viper Air Jacket Videos

Alpinestars Viper Air Jacket

This fashionably street-styled summer jacket features a mesh-on-mesh structure to offer unsurpassed levels of internal climate control. Pre-curved sleeves with Velcro® volume adjustments, together with versatile V-ring waist fit, make the Viper highly customizable. The comfort benefits are ramped up with a removable windproof inner vest lining.


  • Constructed from hard-wearing 600 Denier poly-fabric outer shell reinforced with PU
  • Extensive double mesh on mesh panel construction on front and rear panels
  • Removable windproof inner vest lining to allow jacket to be worn in wet weather
  • Full interior mesh liner with Velcro ®closing wallet pocket
  • Airflow-intake system on lower arms with perforated gusset
  • Removable CE-certified Bio-Armor shoulder and elbow protection
  • Chest and Back protector compartments with PE comfort padding (CE certified Bio Armor back protector insert available as accessory)
  • Neoprene comfort edge on cuff and collar
  • Collar constructed from padded 3D mesh
  • Elongated rear profile, plus Velcro® and D-ring waist adjustment
  • Pre-curved sleeves
  • External zippered hand pockets
  • Internal waist connection zipper allows attachment to selected Alpinestars pants
  • Reflective detailing on front and back
  • Stitched and printed logos and YKK auto locking zippers

Note: The Black/Flo Yellow/White colorway features a Black collar, not Yellow as shown.

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Alpinestars Viper Air Jacket 4.5 5 101 101
Reasonable summer jacket The jacket has a good semi-slim cut, and it fits within the size chart guidelines. The Bio Armor pieces stay in place fairly well, though the elbow pads have a tendency to easily move around unless your arms really fill out the jacket or you're wearing a heavier layer underneath (somewhat defeating the point of it being summer weight) as there's no way to cinch them into place. The optional Bio Armor (and I imagine the new Nucleon) back protection fits the protection pocket very well and provides some nice additional peace of mind without any real bulk. The styling and branding are solid and the high visibility yellow really pops in bad lighting conditions. However, the reflective patches on the upper arms/chest and upper arms/back don't seem to actually reflect much of anything (tested with a camera flash as well as asking fellow riders after night rides) and are pretty useless. So if visibility is a concern the high-visibility version is ok but you're better off looking elsewhere. If you end up in a position where you have to ride with this in some light rain it'll hold up pretty well except that the rain-liner vest doesn't come down the full length of the jacket and you'll quickly find your mid-section wet while the rest of you is still dry. On my particular jacket the vest liner's rain gutter isn't actually stitched properly and doesn't function very well so there may be some quality control issues. To be fair you really shouldn't ride with this in the rain but it is nice to have the option if an unexpected summer shower comes through. I've put in about three months of riding with it and a few thousand miles and it's still holding up well. The non-mesh textile panels when fully zippered along with the wind/rain liner vest can help push this jacket into early fall if you've got some solid base layers but it's not something I'd suggest. With the liner out and the sleeve vents open this jacket flows a ton of air and it's excellent for really hot and humid summer days. October 18, 2014
Great Jacket Great fit. Looks and feels amazing. airflow is good. Zipper pockets are a little further back than i would like. But overall a nice jacket. October 6, 2014
Amazing Great Jacket. Keeps me protected and cool in this humid South Florida weather. September 18, 2014
Great Jacket Comfortable jacket with plenty of breathability to it and very slimming. September 1, 2014
Has great airflow for those hot days and great protection if you fall. Not a single problem. I've already fallen off my bike in the jacket and it doesn't even have a scratch. August 25, 2014
Great Jacket for the money, awesome air flow This is my first jacket and I don't really have anything else to compare it to. I have been wearing it for 3 months and I must say that the air flow it is awesome in the Puerto Rico hot weather. Elbow pads do sit a little to low. I do get lots of compliments from my peers and pics look awesome. Do feel a pretty protected but I guess that more protection would require a bit more money. In general, I am very please with the purchase and will be posting back after 1 year of riding August 21, 2014
After 1 year of commuting with this jacket The stitching is coming apart and my back and chest pads keep falling out. I feel very unsafe wearing this jacket. If you care about fashion only and not protection then by all means, get this jacket. I always get complements on how I look when I wear it. I also know that I would feel a lot safer wearing something else. I'm very disappointing in the quality of this jacket after only 1 year. August 20, 2014
Nice Jacket, I already owned a Leather jacket from Alpinestars and really liked it. Made sense to buy the same brand and some back armor to fit them both. This jacket stays fairly cool and has decent airflow. Very good jacket for the $ spent. August 4, 2014
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Alpinestars Viper Air Jacket
Already Asked: 17 Questions, 106 Answers
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RevZilla Store asked: Why did you choose this?
David B: Color matches my bike and the coat is awesome! Sep 24, 2014
S H: I am riding my motorbike in Vietnam but its incredibly hot weather and cannot wear traditional gear. This jacket seems to be the best fit for what I need. Sep 6, 2014
Manjit K: A very affordable and stylish looking jacket. Jul 25, 2014
Skyler R: good looks, good reviews, easy upgrades for armor in front and back Jul 14, 2014
Louis-Daniel B: leather jacket a bit too thick for the 80+ degrees...hopefully this will more ventilated and lighter.
Also when it rains, i currently use another layer on top of the leather jacket...bulkier...hotter...hopefully this one does the trick without sacrificing safety
Jul 9, 2014
Richard R: the trim look and the lightweight materials should be great for this summer, I liked the clean look of the jacket compared to others in the same price range. Jun 17, 2014
Reza E: Starting to get a little toasty out there and time to put my Alpinestars GunnarWP away for the summer. Already have all the upgraded armor ready to install. Jun 8, 2014
Steve B: Great jacket for the price. Well worth it. May 30, 2014
Andrew C: lightweight coat but enough protection in case of a fall May 24, 2014
Yunfei J: pretty good May 23, 2014
Milton A: its design and perfect for summer days. I liked the zippers on the sleeves and the removal wind protection May 15, 2014
SERGEY K: A+++ May 2, 2014
Edward H: Jacket is smooth looking and very comfortable. May 1, 2014
Jeffery D: Needed warm weather riding gear. Liked the style. Apr 24, 2014
Colt T: Looking for a summertime jacket that will provide a decent level of protection, but at a relatively affordable price point. Apr 19, 2014
Zackery B: It is cheap and very good looking. It might not be the best at anything, but it's definitely not the worst at anything. Apr 19, 2014
Muhamad Hanif H: Alpinestars has an overall good quality for me. As I am riding in the hot season, this type give a good value for the price. Apr 19, 2014
James S: It doesn't get too cold in Hawaii. Basically it is 12 months of summer. I read all the reviews on the Alpine Stars Viper jacket and it seems to offer good protection in a bearable, as in not too hot, jacket. Apr 14, 2014
Duy T: For protection Apr 3, 2014
Robert Y: I needed a summer jacket for the upcoming season and I like Alpinestars styling. Mar 14, 2014
Lindsey G: I chose this because of the graphics and quality reviews. I was not disappointed. Mar 9, 2014
Joseph H: Design and it was the most cost effective for my needs. Feb 25, 2014
William K: Getting ready for springtime! Feb 21, 2014
Jack L: I love the look, it matches my bike... and in Jersey we only need summer gear because its too cold to ride sport bikes in the winter. Feb 15, 2014
Arthur O: Because once I tried alpinestars and loved how well it fits and I needed a light and fresh jacket. That´s why I picked viper! Jan 3, 2014
Jhonathan Y: Because is a perfect outfit for my Ducati 1198 SP Dec 16, 2013
Pam S: Wanted a light weight jacket & the colors I wanted Dec 10, 2013
Ryan C: its a badass mesh jacket and I trust Alpinestars to keep me safe in a crash even a mesh jacket. Dec 3, 2013
Clay R: Best price for quality. Dec 2, 2013
David V: Body protection and appearance/comfort explain in videos. Dec 1, 2013
Brian M: Awesome jacket with great breathability. It's very durable and well made, also is comfortable to wear. Nov 23, 2013
Daniel J: Good reviews, looks, and price! Nov 11, 2013
James M: I bought it because it has high-viz feature and at the time I needed to wear this for work and even thought I don't anymore I still wear it. Oct 27, 2013
Shirley L: useful Oct 19, 2013
Luis M: Colors and very hot place where I ride Oct 1, 2013
Aaron F: I chose this jacket because it's high viz but still has style. I ride an all black bike, so visibility has to come from my gear. Haven't gotten it yet, but I'll leave a review when I get it! Sep 18, 2013
Johann C: Great review and nice color blue and white to match with my helmet. Sep 15, 2013
jude g: I love the reviews Sep 14, 2013
Jeremy B: In Australia we don't have the range as the USA not to mention great prices Sep 7, 2013
carlos p: This was the best looking affordable alpinestars jacket for summer riding. Looks stylish and very visible far away. I got the red first but it didn't match my bike so I end up buying the white/black which good on any colored bike. Aug 22, 2013
Matthew M: Great bang for the buck and stylish! Aug 13, 2013
Jonathan F: Needed a summertime jacket with good ventilation. Also was looking for a jacket with some white in it to match the bike. Aug 12, 2013
majdy a: Reliable company , good price , cheap , very nice design and cheap accessories. Aug 7, 2013
Mehmet D asked: Is there a way to place bio armor CHEST pads in these jacket? Any modifications? May 22, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Jonathon W: Yes, the jacket is compatible with the bio armor chest pads. There is a zipper on the inside bottom of the jacket (its hidden behind the zipper for the connection to pants). Open the zipper, dig around to the chest compartment, and you can un-velcro the chest armor enclosures. Take out the foam stuff and put the bio armor in. May 22, 2014
Reply to Jonathon Good answer? Yes (1) No (0)
Mehmet D: Thanks Jonathan, very very much. May 22, 2014
Ryan K: yes there is. You can up grade the back and chest. I do believe you can get into elbow as well. I did the chest and the back for my jacket and i feel much safer. May 23, 2014
Reply to Ryan Good answer? Yes (1) No (0)
Sebastian G asked: The windproof inner also is inside the sleeves? Feb 25, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Bradford S: No, the liner is only a vest. Mar 18, 2014
Reply to Bradford Good answer? Yes (0) No (0)
Sebastian G: Thank you Brad, and I have another question that maybe you can help me. The sleeves are in mesh or textile? basically I need to know if it are warmer early in the morning.
Thanks again! Mar 19, 2014
Bradford S: Sebastian, the sleeves are solid textile, there is a zipper that you can open starting at the wrist back about 9 or 10 inches if you want venting in the sleeves. I find the jacket is a bit warm in hot weather and have no problems keeping warm at 65 with the sleeves zipped shut. There is no venting in the arm pits so that makes the jacket warmer in cooler weather. By the way I am riding a TL1000S if your riding a Hypermotard you may catch more air than me. 4 what its worth... good luck, I really like the jacket but upgrade the back protector. Mar 19, 2014
A shopper asked: My Chest size matches the medium size but my hight matches an XL (I'm 6'1"). I prefer a tighter fit jacket. Would the medium work for me or would I just look ridiculous? Aug 16, 2013
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Brian D: I am about the same height and on the border between a large and XL. I tried the large and the XL. I like a little more of a relaxed fit in the arms. I felt for me the large was just a tad short on the arms when in riding position, so I went with the XL. 6'1"ish and 187 lbs. 44" chest, arms length about 25". With your height I would go with the Large if you like a tighter fit. I think the MED would be like a tall guy in a little coat. RevZilla does have no restocking fees so if you didn't like the fit you can always return for a different size. That is what I did. By the way. The jacket is awesome! Great airflow and very comfortable. Cool weather make sure to wear the lining and a extra layer with long sleeves. The jacket is ment to keep the air flowing. Hope this helps. Ride safe! Aug 16, 2013
Reply to Brian Good answer? Yes (0) No (0)
KEVIN K: I have a 39.5 inch chest, or 100 cm chest, using the Large Viper Air Jacket with the Bionic Chest Guards and the Bionic Air Back Protector I get about a quarter to about a half inch of spare room in the chest area. The main chest zip looks weak in my opinion, so if you plan on putting stuff in the jacket may be tight or may break the zip. Aug 16, 2013
Reply to KEVIN Good answer? Yes (0) No (0)
Lewis J: I matched the chest size and found the jacket a touch too tight so I went up one (medium to large). As for length, you'll be fine in the sleeves but the jacket is meant to be short fitting at the waist. A medium may be a bit too short though. I'd recommend splitting the difference and getting a large. Aug 17, 2013
Reply to Lewis Good answer? Yes (0) No (0)
Nadir T: You would look ridiculous. I'm 6'2", got the XL with no regrets. The length is right and the chest fits pretty well even though my chest is an L sized chest. Some of my T-shirts are still longer than the jacket but most aren't. Get the XL. You'll look like you're wearing a belly shirt in an M. Aug 16, 2013
Reply to Nadir Good answer? Yes (0) No (0)
Jessie R: I'm 5'10 and have a 42inch chest. I got a Large and the fit is pretty good. The jacket itself is some what short in length. I have a pudgy belly so also take that into consideration. But based on what I have and use, I would recommend getting one that will fit your chest. Aug 16, 2013
Reply to Jessie Good answer? Yes (0) No (0)
Eric E: I'm 6' 2" but slick at 155 lbs and like a tighter jacket too but my past A stars medium was feeling tight. I went for a large this time and glad I did. I can adjust the straps on side for better fit and at worst you can exchange for free Aug 16, 2013
Reply to Eric Good answer? Yes (0) No (0)
Irina B: Get the medium if you can. I'm 6'0 165lb and got the large, and it's a bit on the loose side. The sleeves are plenty long , so I would recommend you try medium first, if anything revzilla will switch for a large at no cost. Aug 17, 2013
Reply to Irina Good answer? Yes (0) No (0)
robert s: I think you would find a medium to short and too restrictive. I am 6ft 2 and 200 lbs / 36 inch waist . the XL fits snug and the length is perfect. I only have a 32inch inseam so my back is long. hope that helps ! Aug 16, 2013
Reply to robert Good answer? Yes (0) No (0)
David C. H: I took a chance and ordered the 'small' even tho I might sometimes wear a 'medium'. I'm glad I did. It fits a bit snug, but is just super with a t-shirt underneath. Love it. Hope this helps. Aug 16, 2013
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Michael P: I am 6' 4" and 190 lbs, usually wear a large, but in this jacket to get the length I need in the arms, I ordered the XL. Snug (but comfortable) fit through the chest and sleeves fit fine. Aug 17, 2013
Reply to Michael Good answer? Yes (0) No (0)
Jeremy B: The sleeves will probably be long enough either way. It may be a little short in the waist. I would go by chest measurement if I were you. If you don't like it you can always exchange it Aug 16, 2013
Reply to Jeremy Good answer? Yes (0) No (0)
Adam C: I'd split the difference and get a large. I'm 5'9" wearing the medium and it fits me perfectly both in terms of length and width. At 6'1" I think you'd look a bit goofy in a medium. Aug 16, 2013
Reply to Adam Good answer? Yes (0) No (0)
Lisandro Angel O: I have the medium size I'm 5''11" and 175lbs. The jacket justs fits I feel if I was a bit taller the jacket may expose more on the back side when I'm hunched over on a sport bike. Aug 16, 2013
Allen L: I'm an XXL waist and chest. I'm 5'10" with a large build and wide shoulders. This jacket is made to fit tight, It forms to my size and is very comfortable. I rode for 4 hours straight and didn't have a single problem. I would get the jacket for a snug fit. Aug 16, 2013
Reply to Allen Good answer? Yes (0) No (1)
A shopper asked: Hi, I'm 5 ft 6 in weighing 167lbs, chest 40 in, waist 39, hip 43. Which size will fit me best? pls help Mar 18, 2014
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Christian L: Im 5'10", 150 lbs, chest 39 in, waist 31 in, with fairly broad shoulders relative to the rest of my torso, and a Medium fits me perfect with the waist adjustment straps tightened down pretty far. There is plenty of waist adjustment on this jacket, and I would say the main limiting factor is in the shoulder/chest area, so I would choose a size based on your chest measurement. Mar 18, 2014
Reply to Christian Good answer? Yes (0) No (0)
Mazlan H: I basically ordered one size larger than my measurements as suggested by Eddyelbows and it fits great! Air flow could improve with more rev but overall a snug fit. It does bulk up with the extra chest and back armour pads. The velcro on the wrist is not too good. Catches my gloves and pulls them out! Mar 19, 2014
Reply to Mazlan Good answer? Yes (0) No (0)
Bradford S: If you normally wear a medium you are gonna want a large. I am an XL and I had to send it back for an exchange to XXL, and its not large enough to wear a sweatshirt under it even at that. Its gonna be warmer than you may think in the summer months but no where near as warm as leather. Mar 18, 2014
Reply to Bradford Good answer? Yes (0) No (0)
Bradford S: ps... I have the Bio Armor back protector and it makes a little difference in the snugness. Mar 19, 2014
William L B: Hello,
I would say go with the XL for your dimensions given. And you should still have descent room to with out the padding upgrading to CE back & chest (must haves). XL should be spot on not tight. XXL should be a loose fit, on the baggy side.
Mar 18, 2014
Reply to William L Good answer? Yes (0) No (0)
William L B: Hello,
I would say go with the XL for your dimensions given. And you should still have descent room to upgrade the padding to CE back & chest (must haves). XL should be spot on not tight. XXL should be a loose fit, on the baggy side.
Mar 18, 2014
Reply to William L Good answer? Yes (0) No (0)
Grant A: I would consult the size chart, but I am 6.2 200 and the XL fits me perfectly. Mar 19, 2014
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James M: A large should fit we are about the same size. Mar 18, 2014
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Anthony D asked: Hi, I'm 5 ft 5 in weighing 145lbs, chest 36.5 in, waist 32, hip 36.5 would a medium fit good or a small? I'm not sure what to get here. Please help! May 29, 2014
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Phillip T: I would say that before ordering my jacket this last time, I went ot a local shop and tried on the same jacket. I later found out that some local shops will match the price of Revzilla, but not on all items. Revzilla offers cash incentives on purchases the dealers won't offer though. Visit a local dealer and try on the same jacket or something similar by the same maker. I believe you would want a Medium, but try one on first. The return policy with Revzilla is great as I have had to return some items in exchange for another size, because I didn't try it on first. May 30, 2014
Reply to Phillip Good answer? Yes (0) No (0)
Saroyan C: You should get small. I got a small at 5ft 8inch 38 chest 30 waist and it is almost perfect, a little on the smaller side. Should probably fit you perfectly. May 29, 2014
Reply to Saroyan Good answer? Yes (0) No (0)
Samuel W: I'm pretty much around the same size as you and I got a small. It was kind of a tight fit and I think a medium would be a better choice. May 31, 2014
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Anthony D: Thank you, I figured a small I just wanted to make sure. Thanks again May 29, 2014
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LP H: Should be fine with a meduim I'm around your size and it fits fine. May 30, 2014
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A shopper asked: I am planning on purchasing this product as well as the bio armor back protector and i need to know what size i need if i am a size XXL? Feb 23, 2014
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Colt T: Yeah, if you're a size XXL in most things, you'd probably want a XXXL in this. I ordered an XL at first because that's what I wear in almost all US clothing. It was very tight and short, and for reference I'm 6'4, 250lbs with an athletic build. I returned the XL for a XXL, and now I'm going to probably order a 3XL too before deciding whether to keep the XXL or 3XL. I didn't notice much difference at all from the XL to XXL, and I'm hoping the 3XL at least gets an inch or 2 longer. There's no way to connect the jacket to any pants if all of the jackets regardless of size only come down to about 4" above where the good lord split me. Apr 24, 2014
Reply to Colt Good answer? Yes (0) No (0)
Kevin H: I bought this jacket and the Bionic Air Back protector this summer. I ordered both in Medium, and it fit great. I watched the long video on here where Anthony talks about all of the Alpinestars armor, and I believe that you would order a Large. Honestly, I would spring for the Bionic Air Back instead of the Bio armor. The Bio armor isn't that much of an upgrade over what comes in the jacket. Other than that, it's a great jacket, I've worn it year round and been comfortable. Never switched to my leather jacket for winter riding. A little warm in the summer, but pretty much everything is. Feb 24, 2014
Reply to Kevin Good answer? Yes (0) No (0)
Jeremy B: I purchased the 2XL and the fit is snug and definitely for a well built person. If you have round mid section vs the v-shape I would buy a larger size. I'm v-shape so the 2nd works for me. Feb 23, 2014
Reply to Jeremy Good answer? Yes (0) No (0)
David C. H: Personally, I like my sport gear a bit tight. I'd recommend you order an XL, if too small exchange it for an XXL. You'll love the jacket. Feb 23, 2014
Reply to David C. Good answer? Yes (0) No (0)
David S: XXXL Feb 24, 2014
Reply to David Good answer? Yes (0) No (0)
William T asked: What are the caring/washing recommendations for this jacket? Aug 15, 2014
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Lewis J: I've washed it in the machine on wool or delicate setting with no issues. I remove the armor pieces first and use a toothbrush to scrub some stain remover into the white areas if they're particularly dirty. Take it out right when the cycle finishes and hang dry. Aug 16, 2014
Reply to Lewis Good answer? Yes (0) No (0)
Phillip T: zip up fully as and all straps velcroed on. then toss in washer machine on delicate in cold water. Works for me. Sep 26, 2014
Reply to Phillip Good answer? Yes (0) No (0)
William T: Thank you for the help. Aug 18, 2014
Reply to William Good answer? Yes (0) No (0)
Tarver M: Wash normal. Air dry Aug 15, 2014
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A shopper asked: is this jacket rainproof ? Aug 7, 2014
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Louis-Daniel B: It is not. Comes with an inner waterproof vest (that does not cover your arms). Tried it once and got soaked. Great ventilation and looks. Armor feels light as well (compared to my other jackets). Would I still buy again? Sure. It's a good cpmpromise away from heavier and hotter jackets. Plus I intend on getting additional armored pieces Aug 7, 2014
Scott C: Not rainproof but somewhat resistant. Jacket has thousands of microperferations for ventilation. You can almost see some light coming through the jacket. Extremely light weight and fits like an Italian tapered jacket. Aug 7, 2014
Reply to Scott Good answer? Yes (0) No (0)
Kevin H: No. It does have a liner, but the liner doesn't have sleeves. Rain will end up going through the sleeves of the jacket. Aug 7, 2014
Reply to Kevin Good answer? Yes (0) No (0)
Phillip T: no Sep 26, 2014
Reply to Phillip Good answer? Yes (0) No (0)
Alan M asked: I have another Astars jacket that's size 56/46 and it fits me snug but comfortably. The sizing chart suggests I'm on the border between XL and XXL. On one hand I am tempted to go the size up to provide room for armor and better airflow; on another hand I'm tempted to stick with XL since I'm losing weight and I do like the snug fit. Any thoughts from those of you who own it? May 9, 2014
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Gabriel J: I had medium size. I remove all the armor to had better airflow. I am in Puerto Rico temp. Is 80F average. Sometimes 95f. All Italian clothing and jacket fit small or more slim to the body. My jacket is the best. May 13, 2014
Reply to Gabriel Good answer? Yes (0) No (0)
Jeremy B: You should definitely buy the larger size. I have about a 48-50 inch chest and the XXL is really snug May 9, 2014
Reply to Jeremy Good answer? Yes (0) No (0)
Kevin H: I'll say this, I added the armor to mine and there was a little room before, now it is rather snug. May 9, 2014
Reply to Kevin Good answer? Yes (0) No (0)
Julio E: I suggest you go for the larger size, they are made in reduced Sizes May 9, 2014
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A shopper asked: Is the cut of this jacket the same as the Alpinestars T-GP R Textile or the Alpinestars T-GP Plus Air? I have the T-GP Plus Air in S and I don't like the cut as it's too short from the front. On the other hand, I tried out the T-GP R Textile (unfortunately it's discontinued) in S and it's a perfect cut for me. Please advise. Thanks. Jan 9, 2014
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Kevin H: Well, I couldn't tell you how it fit's compared to the other jackets that you mentioned, but I can tell you how it fits me. I'm 5'8", right around 160, and in fairly decent shape. I have a medium, and it fit's pretty good. Right now, I'm wearing a full uniform underneath and it still fits fine, in addition to having put the Bionic back and chest protectors inside it. I did break my arm a few months ago and wear a brace on it now, so that sleeve is slightly snug but still comfortable. Length wise it's spot on, shoulders is good, and the sleeves are the right length. Without knowing how tall you are, how much you weigh, etc. I can't really tell you how a small would fit you, but I'd say go ahead and order it. Ships for free, exchange for free. Jan 16, 2014
Reply to Kevin Good answer? Yes (0) No (0)
Gabriel J: I am 5"6" 160lbs riding a ducati monster S2R. I use the jacket every day ride to work. fit me very well, This jacket is a Italian stylish design is s short, The textile good is like ballistic like Tumi bags but stronger. Ventilation not good for Caribbean using all the protection pads, If you remove the protection pads the air flow much better, I like a lot very comfortable with and with out the pads. The reflective on the design area not that kind of reflective., My jacket is black and reflective yellow. I hope this help you Jan 17, 2014
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David C. H: I don't know about the cut of the other jackets mentioned, and I don't intend to sound like Goldielocks, but I think this jacket is neither too short nor too long, it's just right. I love my jacket. Jan 16, 2014
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Phillip T: I actually returned this one, I was not happy with the fit of it. Feb 4, 2014
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Sydney H asked: I am 6' tall and 175 lbs with a 40-42" chest. I usually buy a large in jackets but have noticed recently that the elbow and forearm armor in astars jackets have been sagging a lot on me. considering the fact that i am pretty sure that is not supposed to happen, I am wondering what effect it has on safety. should i be worried about it? Should I try a medium, even if my measurements suggest it will be way to small? Or should I go with the large and just deal with the sag? Is there anyway to control it or reduce the sagging?

May 14, 2014
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Bharat J: I'm a pretty skinny guy, so my forearms aren't that big but I've found the forearm area to be the tightest area of the jacket. I do workout, so my forearms aren't wimpy, but they aren't monstrous by any means.

Im not sure how yours would be saggy. If they truly are saggy, then the jacket's elbow pads would possibly shift around during a fall. That wouldnt be ideal, but wouldnt entirely compromise all safety. Its a lighter jacket so the overall protection isnt really great to begin with, but its doable for low speeds I'd say

Problem with sizing down is that your arms might fit right, but your chest might get squeezed in a bunch and might not fit at all. To be honest from how my jacket is, hearing about saggy forearms on this jacket would make me thing something was wrong with the manufacturing.

So if the jacket looks botched, you should exchange it. Otherwise I guess try to beef up your forearms a bit haha
May 14, 2014
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Christian L: Im 150lbs, 5'9" with a 39" chest and the Medium fits me pretty spot on with just a little extra in the arm length & chest width, and with the waist straps tightened down pretty far (shoulders are snug). I added the A* bionic chest/back protectors, which tightened up the torso area some. Ive tried on quite a few A* jackets in size Large (Euro 52) and they fit noticably bigger in the arm width than the size Medium (Euro 50). I think a Medium would fit you good as long as its not too short in the torso or arm length. May 29, 2014
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Phillip T: try on at a store Jul 2, 2014
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George C asked: I have the Megaton Drystar jacket in XXL and with both liners still in, the jacket is perfect, nice and snug. With the first 50+ degree day yesterday, boy was I hot! Took both liners out and it felt "baggy". Based on this, should I get an XL for the Viper? Or did Alpinestars intend the Drystar to mainly be used with the liners? I want the Viper to be snug as I intend to do a lot of highway riding this summer. Thanks. Mar 12, 2014
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Bradford S: I have no comment about the Megaton Drystar. The liner in or out will make no difference in size in the Viper Air. Alpinestars run small in size so if you are an XL (like me) 5'11" 218 38" waist, buy the XXL. I also bought the Bio Armor back protector and I have no extra room. The sleeves are a tad long but not a bother. Mar 18, 2014
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peter L: the liner for the Viper air jacket is just a paper thin vest so what eversize you are get it in that size because the vest like i said is paper thin..its more like a summer slash warm spring/fall jacket...hope that helps George... Mar 12, 2014
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Mohammad A: I find the liner in the viper air to be extremely thin and almost negligible. I do not think it will make a difference to sizing regardless of it being in or out. I stuck with the chest size guide and was happy with fit. Mar 12, 2014
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A shopper asked: I am 5'2" and 130 lbs, what size should I get, I like a snug fit but also do not want the front of the jacket to be too short and lift up while riding, judging by others heights and weight and the size they chose I should go with an xs but I feel that would be too small? please help. Mar 18, 2014
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Roberto A: Hi. Well i'm 6.0 ' and 170 lbs. I chose L size....it fits fine.
Enough lenght for my arms, as well as in the front.

Maybe the M size could fit fine but I was afraid on the arms to be short more than the front.

I don.t know what would fit you better. But im sure you will be fine with S or XS. However i ended up getting L Instead of M and no problems.

Worst case....you can return it and change it for no cost (revzilla poliCy)

hope it helps
Mar 18, 2014
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Alejandra M: My husband is 5'10 and 200 lbs. He bought the large and, for being a large, it was a tight fit. I recommend you get the small. Mar 18, 2014
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A S asked: If i am purchasing this jacket in a XXL what size bio armor do i need? Feb 23, 2014
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Bradford S: I bought the Large Bio Armor back protector for my XXL Viper Air jacket and it fits perfect! Mar 18, 2014
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Don M: I have not changed any of the armor that came with the jacket. I like it the way it is. Feb 23, 2014
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A shopper asked: What size? I'm 5'10'' ,165lbs and 42'' chest May 20, 2013
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Stardan: I would probably take the medium, especially if you plan on wearing the inner lining (removable) frequently. I'm 5'10" 185lbs, with a 43-44 in. chest, and the Large fits me well. May 21, 2013
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A shopper asked: I wolud like to know if this jacket already comes with the protection in shoulders and elbows and the ones that go in the chest and back o what? Mar 6, 2013
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RevZilla: The Alpinestars Viper Air Jacket comes with CE certified Bio-Armor protectors in the elbows and shoulders. The chest and back compartments have PE comfort padding that is not CE rated, but CE Bio-Armor is available for purchase separately as an upgrade. Mar 8, 2013
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Sizing video for alpinestars (198)

Men's Jackets Sizing

Euro USA Alpha Chest (cm) Waist (cm) Hip (cm) Arm (cm) Height (cm)
42 32 2XS 82-86 68-72 83-87 51-52 159-163
44 34 2XS-XS 86-90 72-76 87-91 53-54 164-167
46 36 XS-SM 90-94 76-80 91-95 55-56 168-171
48 38 SM-MD 94-98 80-84 95-99 57-58 172-175
50 40 MD 98-102 84-88 99-103 59-60 176-179
52 42 LG 102-106 88-92 103-107 61-62 180-183
54 44 XL 106-110 92-96 107-111 63-64 184-187
56 46 XL-2XL 110-114 96-100 111-115 65-66 188-191
58 48 2XL 114-118 100-104 115-119 67-68 192-195
60 50 3XL 118-122 104-108 119-123 67-68 192-195
62 52 3XL-4XL 122-126 108-112 123-127 69-70 196-199
64 54 4XL 126-130 112-116 127-131 69-70 196-199

Note: Alpinestars sizes displayed on our website are in Euro sizing, use the chart above to convert your standard US size to Euro. 

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Click here to see the full Alpinestars Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black/Black/Black / SM 947564 3302713-10-S In Stock: Ships next business day
Black/Black/Black / MD 947565 3302713-10-M In Stock: Ships next business day
Black/Black/Black / LG 947566 3302713-10-L In Stock: Ships next business day
Black/Black/Black / XL 947567 3302713-10-XL In Stock: Ships next business day
Black/Black/Black / 2XL 947568 3302713-10-2X/3302713-10-XXL In Stock: Ships next business day
Black/Black/Black / 3XL 947569 3302713-10-3X In Stock: Ships next business day
Black/Black/Black / 4XL 947570 3302713-10-4X Out of Stock
Black/White / SM 880841 3302713-12-S In Stock: Ships next business day
Black/White / MD 880842 3302713-12-M In Stock: Ships next business day
Black/White / LG 880843 3302713-12-L In Stock: Ships next business day
Black/White / XL 880844 3302713-12-XL In Stock: Ships next business day
Black/White / 2XL 880845 3302713-12-2XL/3302713-12-XXL In Stock: Ships next business day
Black/White / 3XL 880846 3302713-12-3XL In Stock: Ships next business day
Black/White / 4XL 880847 3302713-12-4XL In Stock: Ships next business day
White/Blue/Black / SM 880862 3302713271S/3302713-271-S Out of Stock
White/Blue/Black / MD 880863 3302713271M/3302713-271-M Out of Stock
White/Blue/Black / LG 880864 3302713271L/3302713-271-L Out of Stock
White/Blue/Black / XL 880865 3302713271XL/3302713-271-XL Out of Stock
White/Blue/Black / 2XL 880866 3302713-271-2XL/3302713-271-XXL Out of Stock
White/Blue/Black / 3XL 880867 3302713-271-3XL In Stock: Ships next business day
White/Blue/Black / 4XL 880869 3302713-271-4XL Out of Stock
Black/Flo Yellow/White / SM 880848 3302713-158-S In Stock: Ships next business day
Black/Flo Yellow/White / MD 880849 3302713-158-M In Stock: Ships next business day
Black/Flo Yellow/White / LG 880850 3302713-158-L In Stock: Ships next business day
Black/Flo Yellow/White / XL 880851 3302713-158-XL In Stock: Ships next business day
Black/Flo Yellow/White / 2XL 880852 3302713-158-2XL/3302713-158-XXL In Stock: Ships next business day
Black/Flo Yellow/White / 3XL 880853 3302713-158-3XL Available: Expect 2-3 business days processing time prior to shipment
Black/Flo Yellow/White / 4XL 880854 3302713-158-4XL Out of Stock
Black/Red/White / SM 947571 3302713-132-S In Stock: Ships next business day
Black/Red/White / MD 947572 3302713-132-M In Stock: Ships next business day
Black/Red/White / LG 947573 3302713-132-L In Stock: Ships next business day
Black/Red/White / XL 947574 3302713-132-XL In Stock: Ships next business day
Black/Red/White / 2XL 947575 3302713-132-2X In Stock: Ships next business day
Black/Red/White / 3XL 947576 3302713-132-3X Available: Expect 1-2 business days processing time prior to shipment
Black/Red/White / 4XL 947577 3302713-132-4X In Stock: Ships next business day