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Alpinestars A-10 Air-Flo Pants
  • Alpinestars A-10 Air-Flo Pants
  • Alpinestars A-10 Air-Flo Pants

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Video Reviews (2)

Alpinestars A-10 Air-Flo Pants Videos

Alpinestars A-10 Air-Flo Pants

Alpinestars Air-Flo system means maximum ventilation for riding with comfort and protection in hot conditions. Practical and convenient, combined with great styling and looks. Keep your cool and ride safely in the heat by pairing these with the T-GP-R Air or T-GP Plus Air Jacket.


  • 1200D and 600D Polyester Fabric construction with abrasion resistant
  • Air Flo mesh for maximum cooling
  • Removable CE approved GP knee and tibia protectors
  • Embroidered logos
  • Pre-curved construction for riding comfort
  • Waist zipper connection allows attachment to selected alpinestars leather and textile jackets
  • Removable knee slider covers

Men's Pants Sizing

Euro USA Alpha US Pant Size Waist (cm) Hip (cm) Thigh (cm) Inseam (cm) Height (cm)
42 32 2XS 26 68-72 83-87 50-51 73-74 159-163
44 34 2XS-XS 28 72-76 87-91 52-53 75-76 164-167
46 36 XS-SM 30 76-80 91-95 54-55 77-78 168-171
48 38 SM-MD 32 80-84 95-99 56-57 79-80 172-175
50 40 MD 34 84-88 99-103 58-59 81-82 176-179
52 42 LG 36 88-92 103-107 60-61 83-84 180-183
54 44 XL 38 92-96 107-111 62-63 85-86 184-187
56 46 XL-2XL 40 96-100 111-115 64-65 87-88 188-191
58 48 2XL 42 100-104 115-119 66-67 89-90 192-195
60 50 3XL 44 104-108 119-123 68-69 89-90 192-195
62 52 3XL-4XL 46 108-112 123-127 70-71 91-92 196-199
64 54 4XL 48 112-116 127-131 72-73 91-92 196-199

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 / 44 303941 332608-10-44/28210281 In Stock: Ships within 24 hours
Black / 46 303942 332608-10-46/28210282 Available: Expect 1-4 business days lead time prior to shipment
Black / 48 303943 332608-10-48/28210283 In Stock: Ships within 24 hours
Black / 50 303944 332608-10-50/28210284 In Stock: Ships within 24 hours
Black / 52 303945 332608-10-52/28210285 In Stock: Ships within 24 hours
Black / 54 303946 332608-10-54/28210286 In Stock: Ships within 24 hours
Black / 56 303947 332608-10-56/28210287 In Stock: Ships within 24 hours
Black / 58 303948 332608-10-58/28210288 In Stock: Ships within 24 hours
Black / 60 303949 332608-10-60/28210289 In Stock: Ships within 24 hours


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Alpinestars A-10 Air-Flo Pants 4.2 5 36 36
Excellent Track or 'Sport' gear The A 10 is excellent. Fit: I'm 5'10, 185lbs,, ~31/32 inseam, muscular, wear 34 jeans and 36 measure around navel. Euro size 54 is perfect fit for me. Leg length is not a concern with track boots or any high riding boot. Weight, Comfort: A 10s are relatively light weight (compared to leather, duh) and very comfortable on and off the bike. In prep for track I spent a few three hour rides in these at 90+ degrees and they are cool while moving. In traffic, yes, they get a bit hot. At Track, 7 a.m. - 5.p.m., 80 to 90 degrees. they were great; comfort, some air flow while riding and okay walking around the pits. Protection: Strong layers of aramid and denier (sp?), well placed armor in hips side of thighs, cixcix and heavy knee shin armor. No crashes, thankfully. But my bet is they'll hold up and protect in a bad slide or low impact high-side. I'm completely confident. Overall: A bit pricy but I recommend A 10s. When you get you hands on them, and put them on, you'll feel the quality, comfort and protection. August 28, 2015
Great on those hot days I have worn these a quite few times when I get out of town. The airflow is excellent. It is easily is 90+ degrees in the summer/early fall here and these make it feel like I am in air conditioning. They do fit small though. The first size I ordered was a 48, which were just too small. I returned them and got a 50, which is still a bit tight. August 7, 2015
Great riding pants I first bought the diamese textile pants but returned them because they fit too snug and were very constrictive and uncomfortable on the bike. I love these alpinestars pants! Their great and have plenty of air flow and make it moving around on the bike in turns very easy. Very stylish and well made. They fit a little loose when your just walking around in them but once you sit on the bike all the knees armor and every thing falls into place perfect. I'm 5'8" 32 waist and bought a size 50. A size 48 may have fit but I didn't wanna chance it. I'm happy with the pants. And the fact that you can put knee sliders on them is great. I recommend these July 25, 2015
A really good pant I hope to never test the crash-worthiness of the product bu I feel much better protected in these than in kevlar Jeans, or overpants. They are nicely fitted, and great airflow. Other Revzilla reviews gave me the fit info I needed to get it right on the first attempt. They could use a pocket... Directions for removal of crash padding for washing woefully inadequate. June 15, 2015
AStars Air flo pants Wanted a nice pair of vented riding pants and settled on these. Has fantastic venting. Satisfied overall, only issue I have had is that in stop and go traffic the knee/shin armor riding up and down my legs can get rather irritating. June 8, 2015
Good Summer Pants These pants are good for the summer months. The air flow is good and they come equipped with velcro for knee pucks. They do not come with the pucks though, which was a little annoying. If you pay $250 for a pair of pants they should come with a $25 set of pucks. Other than that they are great. I had to buy one size up from the measurements on the site. June 1, 2015
A10 vs Dainese New Air Drake Comparison I just picked these pants up to replace my Dainese New Air Drake textile pants. I've been wearing the Drakes for the last two years so I will compare the two since they are competing products and I think anyone looking for this style of pants will look at both of these. I am 5'6", 30ish inch waist, with skinny legs. I think my inseam is 28-29". I have both pants in a 46. The A10s definitely have tight calves like others have mentioned. I have to pull the pants down a little to zip the calves. They're comfortable once zipped and I expect them to maybe stretch a tiny bit based on other reviews. The length is also a bit short. The legs stop right at my ankle. Ultimately these are benefits as it is clear these pants are made to be worn with full length boots which is what I wear. The Air Drakes have more room in the calves but maybe slightly less room in the thighs. This means you have to fold the lower leg over on itself if you want to tuck them into boots. However, the legs aren't wide enough to fit over full length boots. The legs are also longer. Compared to the A10's, the legs will drag on the floor when wearing socks. However, it also means you can wear these over short boots. Knee and shin protection for both pants is roughly equal. The Air Drake pads cup my knee a little better. The A10 pads are slightly larger which is probably a good thing. Both pants have dense foam around the hips. The Air Drakes feel like they have a little better coverage in this area. The A10s have a little ribbed padding piece under your tailbone. It's hard to tell if it will offer any significant protection though I would rather not find out. It doesn't seem to affect comfort when riding. The A10s have much needed stretch panels along the lower back and above the knees. This is an area where the Drakes are lacking as they are definitely tight in the knees and you can feel the back of the pant tighten when in a tuck. The restrictive knees in the Drake also make it harder to hang off the bike. The A10s also have velcro patches on the knee for sliders. This is one of the primary reasons I am switching to the A10s over the Drakes. Both pants are equally snug in the crotch area which is through no fault of my own. You can feel this restriction when hanging off the bike. More room or stretch panels would be nice to have. The Drakes have a tighter waist than the A10s. The A10 waist is elastic and much more comfortable. However, the Drakes have a rise built into the back of the pants that the A10s do not. If you don't zip your jacket to the pants then you're going to have a gap when riding. The A10s obviously flow more air then the Drakes. The A10 textile is a better comparison when it comes to air flow. Dainese just released a mesh version of the Drake so that is a better comparison to the A10 air. It looks like it has more mesh than the A10s so it should flow better but may also offer less abrasion protection. I would expect the alternative versions of either pant to fit the same. The textile material used in the Air Drakes feels studier than that in the A10s so it seems like they may offer better abrasion resistance. Both pants have mesh lining inside of them. The Air Drakes also have two side and one rear pocket. The A10s have no pockets. I am indifferent to having pockets in my riding pants but I can see how it could be useful to others. Both prices are about the same for these pants which isn't too unreasonable. On one hand, you can get nice leather pants for not a whole lot more than what you will pay for these. On the other hand, decent riding jeans cost about the same but are inferior in protection and in the features they offer. My reason for switching to the A10s is to have more air flow and because the Air Drakes are too restrictive in the knees, both when riding and when hanging off the bike. Also, as with any Alpinestar product, their name and logo is plastered everywhere. It looks tacky and I don't like being a walking billboard for their company. I removed the rubber Astar logo on the knees by cutting out the stitching. They look much better and you could never tell a logo was sewn in there. I also used a black fabric dye pen to black out the Alpinestars name on the velcro shin patches. May 31, 2015
Excellent style and fit! I love these pants! I've worn riding jeans and over pants. Nothing seemed to fit. The pads and protective elements would shift around because regular pants are too baggy. The Alpinestars A-10 Air Flo Pants are fitted to my body, so that the protection stays put. They look amazing too! May 13, 2015
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Alpinestars A-10 Air-Flo Pants
Already Asked: 10 Questions, 47 Answers
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RevZilla Store asked: Why did you choose this?
Garth B: Good fitting pants which go well with my Alpinestars jacket . Jul 16, 2015
M S: Alpine stars product Jun 8, 2015
Evan R: I would like a tighter more protective riding pant than jeans. May 11, 2015
A S: perfect for the florida hot weather and seems to have good protection and style Apr 9, 2015
matthew c: Airflow and protection Apr 7, 2015
David D: I wanted something breathable for summer and upgradeable to knee sliders. Dec 21, 2014
Thomas D: for good protection but if you need them just buy a suit. Sep 7, 2014
Japjit G: to help me drag knee on the highway ramps. May 28, 2014
Jose A: Protection in hot weather, where you may be tempted to ride in shorts! Apr 22, 2014
Steve F: Wanted an aggressive pant, but not leather, to go with my Alpinestars Viper jacket in summer. These are very comfortable and look pretty good, too. Mar 12, 2014
jeffrey w: yes Nov 19, 2013
Jose A: Quality and protection on hot weather riding conditions Nov 14, 2013
Kasper S asked: Removable knee slider covers. Does that mean you can attach actual a-stars knee sliders? Sep 18, 2013
Answer this · Send to friends Good question? Yes (1) No (0)
Julian G: Yes I believe you can. I haven't worn these for a long while since upgrading. Awesome riding pant in the heat. Sep 18, 2013
Reply to Julian Good answer? Yes (1) No (0)
John M: Yes you can attach any Velcro slider to the pants. Sep 18, 2013
Reply to John Good answer? Yes (1) No (0)
Samantha S asked: What boots are meant to be worn with these pants? I have a pair of SMX-5's but the shin protector will not fit inside of the boots, and the pants will not fit over the boots. I also have a pair of SMX-1's and they look completely goofy with these pants. What are these pants meant to be worn with? Sep 5, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Neil A: I wear the A-10 pant (as-shipped with the shin protector inserted) with lo-boots (Dionese Dino CB2).

To wear the A-10 pant with boots that cover the shin (SMX-1, i believe cover the shin) I remove the shin guards from the pants... velcro at the bottom and just above the pocket for the guard hold it in. I then wear the A-10 with SMX-Plus boots. The fit is snug but the boot allows sufficient adjustment to make it comfortable.
Sep 6, 2013
Reply to Neil Good answer? Yes (0) No (0)
Japjit G: I love these pants, and I understand your issue... I personally wear a low profile SIDI boot with these pants with the boot being worn over the pants, I personally find the ankle zip up area to fit very tightly and it would be nearly impossible to fit a boot underneath it... Hope this helps (the SIDI boots go well with these pants) Sep 5, 2013
Reply to Japjit Good answer? Yes (0) No (0)
Vladimir B: This pants are perfect to use with full protection boots and should fit your SMX-5. I use em with my Dainese Torque RS Out and there's plenty of space for the pants. Maybe it's because my boots got the calf adjuster, but anyway – the part of the pants that go into the boot is really thin. Sep 7, 2013
Reply to Vladimir Good answer? Yes (0) No (0)
Sebastian G: I'm not entirely sure what boots they are designed for but I personally wear them with my SMX-1s. It may look goofy but they do their job perfectly which is to keep you safe. If you are worried about impressing other people and how you look, you are riding for the wrong reasons. Sep 10, 2013
Reply to Sebastian Good answer? Yes (0) No (0)
Sergey M: Hi there.
I have SMX Plus and they fit perfect to A-10 pants.
When I wear SMX Plus with jeans, it's goofy. But with A-10 pants inside it's tight fine.
I'll try to upload my photo
Sep 8, 2013
Reply to Sergey Good answer? Yes (0) No (0)
PETRO- Steven S: Samantha this pants are neant yo wear with an underneath boot. The pants do come a little small in size. Though these pants feel great lost of airflow and are ment to wear tight Sep 5, 2013
Todd T: These pants are designed to be worn on the inside of boots. Alpinestars have an excellent selection of sport bike boots and they go great with these pants.

Sep 5, 2013
Reply to Todd Good answer? Yes (0) No (0)
Ivan K asked: How would these pants fit with a SMX-1 boot? Are they meant to be worn with a shoe or high boot? Apr 12, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Luc M: Works perfect with the SMX Apr 12, 2014
Reply to Luc Good answer? Yes (1) No (0)
Jon B: I believe the SMX-1 boot is a low cut from Alpinestars. These pants are clearly made to be worn inside a high boot. I wear a pair of SIDI ST Air boots and they fit perfectly tucked in. I would NEVER wear these pants in a low cut shoe/boot.

Hope this helps.

Apr 12, 2014
Reply to Jon Good answer? Yes (0) No (0)
Tommy N: Although these were meant to go with high top style boots, these will work with SMX-1's if your a short stalky build like myself. I am 5-6" height and wore a size US38 for reference. In my opinion, if you're 5-10" or taller, some of your ankle may be exposed with a short boot. Apr 13, 2014
Reply to Tommy Good answer? Yes (0) No (0)
John M: I believe they are designed for boot wear only as they are not long enough for shoes nor should you wear anything below the ankle. When worn inside of boot yes they work very well with SMX-1 Boots and are great warm to moderate weather riding pants. Apr 13, 2014
Reply to John Good answer? Yes (0) No (0)
Liam M: I would recommend wearing high boots with these pants, not much coverage around the ankles. Very comfortable otherwise. Apr 13, 2014
Reply to Liam Good answer? Yes (0) No (0)
Ivan K: Thanks for the responses! Apr 13, 2014
Reply to Ivan Good answer? Yes (0) No (0)
A shopper asked: Does it have a waterproof liner? Oct 10, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Japjit G: These pant don't have any liner, or not anything you can remove anyway. Although if it's water you're worried about, I wouldn't worry with these pants. I personally also have the matching jacket that zips together with these pants and I've been caught in the rain a few times where this gear. The outer shell of these pants will repel water very nicely. Last time I was in a down pour the clothes I was wearing underneath were bone dry. I highly recommend these pants for warm/hot weather riding. The allow massive air flow to keep you cooled down... hope this answers your question :) Oct 10, 2013
Reply to Japjit Good answer? Yes (0) No (0)
Cameron B: Pretty sure it doesn't. Oct 10, 2013
Reply to Cameron Good answer? Yes (0) No (0)
Dorin P: No it does not. Oct 10, 2013
Reply to Dorin Good answer? Yes (0) No (0)
Shahrukh E: Nope Oct 10, 2013
Reply to Shahrukh Good answer? Yes (0) No (0)
Clark P: No Oct 10, 2013
Reply to Clark Good answer? Yes (0) No (0)
A shopper asked: Would the zipper connection for these pants connect with the Alpinestars Jaws perforated leather jacket? Aug 10, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Luc M: These pants come with both halves of the connecting zipper...My wife sewn the free half to my Dainese Air jacket since the Dainese one was not compatible. My guess is that it should fit, my Dainese pants fit with my two jackets... Aug 12, 2013
Reply to Luc Good answer? Yes (0) No (0)
Michael C: If it doesn't connect to the zipper on the jacket it comes with the mating zipper that allows you to attach it to whatever jacket you wish. Aug 13, 2013
Reply to Michael Good answer? Yes (0) No (0)
Andre S: My jacket is not the Jaws model, but, its zipper connects perfectly with my jacket. Aug 15, 2013
Reply to Andre Good answer? Yes (0) No (0)
John B: Hooks up to my A Stars GP-R awesome. Has the smaller style zipper. Get the pants! Aug 12, 2013
Reply to John Good answer? Yes (0) No (0)
Erick m: hi good day, it is correct, you can connect the pant with jacket Aug 12, 2013
Reply to Erick Good answer? Yes (0) No (0)
Soumendra J asked: I bought it last month.
But how do we wash clean it ?
Can we remove all protectors ?
Sep 24, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Adam K: I wash mine occasionally in the washing machine. All the protectors are removable. I try to wash them by themselves or with my jacket in cold water. I lay it out to dry. Sep 24, 2015
Reply to Adam Good answer? Yes (0) No (0)
Soumendra J: So, basically remove all protectors and then simply wash the pants with cold water and then install back the protectors ? Sep 24, 2015
Jeffery B: Yes you can wash them. Removing the knee and chin armor isnt easy but doable. Washing instructions are on the tag. Sep 24, 2015
Reply to Jeffery Good answer? Yes (0) No (0)
Adam K: That is how I do it and have had no negative side effects! Sep 24, 2015
Reply to Adam Good answer? Yes (0) No (0)
matthew c asked: I am 6' 3'' and wear a size 32 jeans. I have a 32 1/2" inseam. Would a size 54 still work? Apr 3, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Japjit G: I'm about 6'2" with size 38 pants and size 60 fits me perfectly, hopefully this helps. I initially went with a smaller size that didn't fit, if this happens to you don't worry, Revzilla has an awesome RMA policy, just keep all the tags and product packaging and ask to exchange ....These pants are awesome for the summer, good protection and awesome breathability. Apr 4, 2015
Reply to Japjit Good answer? Yes (1) No (0)
John B: Maybe. Go for it. The 54 was a little small for me on a 6' 34/34. Was a bit snug on thighs. It's a tough pant to fit for sure. Go with your jacket size. Apr 3, 2015
Reply to John Good answer? Yes (1) No (0)
Grant C: I am not able to answer other customers questions regarding size, other than to say that I have made many purchases through Revzilla and found their guidance on size to be reliable. They also have a good return policy so the risk is minimal. If you wear boots you have some flexibility with inseam length.
I have been riding with the A-10's in FL for a year. They are comfortable, have a good level of protection and good for hot weather riding (all things considered - they are not air conditioned!!)
Apr 3, 2015
Reply to Grant Good answer? Yes (0) No (0)
Mark W asked: I wear a size 48 in Astar track pants. Would a 48 in the Air-flo pants fit the same ? Mar 8, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
david a: As far as I can tell, I would say yes. I wear the same in both.

Mar 9, 2014
Reply to david Good answer? Yes (1) No (0)
TIRAJ R: Yes it would definetly fit. Mar 20, 2014
Reply to TIRAJ Good answer? Yes (0) No (0)
A shopper asked: I want to sew in the zipper into my non Alpinestar jacket. If it doesn't come with it is there any way to buy the zipper seperately? Dec 13, 2011
Answer this · Send to friends Good question? Yes (0) No (0)
Chris K: Typically they do, but if for some reason it is missing, you should be able to source one directly from Alpinestars at 310.891.0222. Dec 22, 2011
Reply to Chris Good answer? Yes (0) No (0)
VinceB: Yes.... It comes with both sides so you can take one side off and sew it to your jacket and create a two-piece suit, Mar 3, 2013
Reply to VinceB Good answer? Yes (0) No (0)