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Forcefield Back Protector Pro Sub 4
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  • Forcefield Back Protector Pro Sub 4
  • Forcefield Back Protector Pro Sub 4
  • Forcefield Back Protector Pro Sub 4
  • Forcefield Back Protector Pro Sub 4
  • Forcefield Back Protector Pro Sub 4
  • Forcefield Back Protector Pro Sub 4

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$199.00
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Forcefield Back Protector Pro Sub 4 Videos

Forcefield Back Protector Pro Sub 4

The Forcefield Back Protector Pro Sub 4 is the worlds first Motorcycle back protector to transmit less than 4kn when subjected to the standard CE test.

The Pro Sub 4 has been specifically designed to test at under 4kn when subjected to the standard CE test EN1621-2. Independent testing by SATRA shows a mean test result of 3.38kn transmitted energy, making it the first motorcycle back protector in the world to attain this level of performance. Constructed with a removable and washable outer cover to give the rider the ability to keep the back protector clean and hygienic , it also makes the protector more flexible as it is not bonded at the edges, this in turn makes it more comfortable to wear, a prime consideration in the design process of any Forcefield product. As with all Forcefield Body Armour® the Pro Sub 4 has RPT (Repeat Performance Technology) ensuring continued and consistent protection even after multiple impacts. 

Features:

  • The World's first Motorcycle back protector to transmit less than 4kn when subjected to the CE test EN1621-2 (Level 2)
  • Removable and washable outer cover
  • CE Level 2 Rated Protection
  • RPT (Repeat Performance Technology)
  • Comfortable and non restrictive
  • Flexible
  • Breathable
  • Moulds to body shape
  • Adjustable waist and shoulder straps
  • Multi Sport use

Read more about this product in this WebBikeWorld.com Review

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Forcefield Back Protector Pro Sub 4 4.8 5 50 50
Yet another fantastic Forcefield product I'm a tall female (5' 10") and have had a terrible time finding women's gear that fits. I've had to purchase guy's gear a few times and that has worked out pretty well. I had the women's Sport Lite L2, which is nearly the equivalent of this one, but it's way too short for my back. Also, the Pro Sub 4 is thicker - presumably due to better internal padding/protection. The Pro Sub 4 is a bit wide for my torso. Even so, it fits snug and is super comfortable in any riding position. The space for the shoulders is perfect - I have full range of motion. However, it seems like it would fit much wider shoulders, as it covers my shoulder blades, but that's had zero effect on my mobility when riding. If it's anything like the women's, it will mold well to my body over time, too. It breathes pretty well and extends from the lower C-region all the way down to lumbar. I feel protected. Haven't gone down in it yet, but I have tested Forcefield knee protectors and they saved my knee during a crash. My handlebar went down on my knee and the force of the impact separated the clip from the clutch and bent them both back in either direction flush with the bike. I walked away - bruised, but no lasting injury. Forcefield is awesome. Just wish I'd bought the guy's the first time around. July 5, 2014
This back protector fits & performs well! Took about 2 weeks to form to my back- now it fits like a glove! Very comfortable, even in hot weather. I use this for riding & for coaching Motorcycle Rider Training courses in the NE. The coverage is great from neck to tail bone. Doesn't interfere with my full face helmet or the riding pants I wear. I'm 5'11", 180lbs, with all average build. I recommend talking to the Revzilla tech to get the right size for your body type. I've used hard shell versions of back protectors for more than 20 years & this upgrade to a more flexible material is awesome! ~ Corvus June 9, 2014
Awesome Had this now for 3 weeks. On hot days it wicks the hot sticky air out of my coat. Comforms to your body in about 5 min of wearing. May 26, 2014
Great Back Protector This is a great protector, a little bit slimmer than the knox, but once it gets warmed up a bit it flexes with your body perfectly. Tons of protection and full track day comfort. May 19, 2014
Doesnt get any better than this! I wear this under my riding jacket. It has superior protection across the entire back including the tail bone. Forcefield says it can absorb impact after impact without destroying its durability, unlike hard shell protectors. Initially it feels like you've strapped a stiff board to your spine but after only a couple hours it forms nicely to your back shape. Apart from the kidney belt holding my core (which can be loosened or tightened on preference) i would never even know im wearing it. The outer case is easy to take off and wash (cold water + air dry). Which you'll be thankful for after wearing it on a few hot summer days under a suit or jacket. The only draw back is it must be worn under a suit or jacket, unlike other protectors which have hard plastic plates to absorb road contact directly. April 12, 2014
Claimed to be the best - hope I don't need it! Overall, the back protector is very nice. Fits well and easily conforms to your back, especially when warm. It's thin enough to fit under most leather suits, so no adjustments required. My only gripe, which might come down to sizing, is that it rides up my back a bit when donning the suit. Coverage remains good, but combined with my helmet and the leather suit's speed hump, my neck's range of motion is somewhat impacted. I recommend wearing the gear you plan to use with the back protector, getting on the bike, and trying your typical body positions. Have a helper measure your back while in position - should ensure you don't limit your range of motion. March 17, 2014
Padded Courage I am 6ft 165 and ordered the size MD. It's a bit snug under my Astars Tech 1 jacket size 50, but perfect under my size 52 Puma track leathers. It does feel a bit bulky and stiff right out of the packaging, but molds to the contours of your back really well once it's on under your leathers. Comfortable while riding. Haven't needed to test the impact absorption yet, but it does provided a bit of additional padded courage. March 15, 2014
need protection? he is the final stop ,if you looking for best back protector you can buy -super comfy ,after 3-5 min of wearing ,like a your thick skin) -super protected February 17, 2014
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Have a functionality, fit, or otherwise product-specific question about the Forcefield Back Protector Pro Sub 4? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Forcefield Back Protector Pro Sub 4
Already Asked: 6 Questions, 49 Answers
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RevZilla Store asked: Why did you choose this?
manuel s: Safety and quality. Haven't been disappointed. Great product. Aug 8, 2014
Wilfred F: It costs alot so it should do a better job than a cheap back protector....... right? May 28, 2014
Sunbir W: After a lot of research, found this to offer the best protection that is available in the market for the back and spine Apr 15, 2014
Justin R: Best protection Apr 12, 2014
"" ": Safest back protector on the market Feb 16, 2014
JUAN R: It´s suposed to be the best back protector. Feb 14, 2014
Jeff R: It's the best body armor made! Since you carry almost all of the Forcefield line of products, may I recommend that you take a look at carrying just a few of their other items for snow sports too? I am talking about the Board Shorts (tinyurl . com/kknpfgt), Knee Protectors (tinyurl . com/lrqhxz7), and Boom Shorts (tinyurl . com/omdsz83). Trust me. There's a market for it. I had to order shorts and knee guards from England, but would rather have paid you! Thanks! Dec 31, 2013
Mark M: Had a wreck & broke my back in 4 places. I was wearing a jacket with a CE approved spine protector. Had I been wearing this I would not have spent six weeks in hospital & not have had to learn to walk all over again. This is CHEAP INSURANCE! It is also comfortable & you forget you are wearing it. Don't be so COOL it kills you. Dec 17, 2013
Wade S: Reviews. Oct 26, 2013
John L: How could I not choose Forcefield for my spine protection. All it takes is for one fall and without the proper protection and you just can't take it back, This product screams safety fits well right out of the box, I highly support all forcefield for making the best safety products on the market. Oct 2, 2013
Athena M: I love Forcefield and did a lot of research before purchasing this. It is quite thick but very light and comfortable. Great protection but too thick under the tight fitting kangaroo suit, switched to the ladies Pro Sub 4 (which was not available when I purchased this). Sep 26, 2013
Tim F asked: Hey. I'm just under of 5 11", 32" waist, 178lbs. I took the torso measurment as advised by forcefield and keep coming up 21-22". I'm usually a medium in everything and the 22" puts me into an XL. Would you think the L would do it? thanks. tim Aug 18, 2013
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Mary R: I'm not sure why this thing says my name is Mary, but whatever. I'm personally 5'9", 160 lbs, and about a 31 inch waist and I ordered a medium and it fits but it may be a hair too small. But it's so close that a large would have been too long. Best thing I can tell you to do is order a large because that should work for you as put it on with the gear you plan to wear with it, helmet too. The back protector should cover your tailbone with the tip, all the way up to your neck pretty much. Should be about an inch of space between the top of the back protector and your helmet. Make sure it's not bunched up or caught on your gear too as that would give you an inaccurate idea of how it fits. If its too short, go up to an XL if its way too long (doubtful) go down a size. Most likely though, I'd guess a large would do you. But it's worth it to send it back if its not right because the more uncomfortable it is, the more likely you are to not wear it or become distracted while riding. Hope that helps! Aug 19, 2013
Reply to Mary Good answer? Yes (0) No (0)
Kenneth H: Hi! I have had one for sometime now and use it always! Even when above 100 degrees - live in Yuma!

The medium is fine for me. I am 68 to 69 inchs tall.
The waist has lots of adjustment and that should not be a problem also.

I would guess the large would work fine for you. You can try it and if do not like the fit. I am sure RevZilla will change it out.

I have not tested it effectiveness and hope never to but I will not ride without it on.

Ken
Yuma, AZ
Aug 19, 2013
Reply to Kenneth Good answer? Yes (0) No (0)
Michael C: Hi Tim, don't know if large or extra will work best. I bought one earlier this year for racing and bought an extra large. I'm 6'1, 180 pounds, and have a 32 to 34 waist. I have an athletic build. Works under my leathers great. Would buy again if ever needed. Excellent product. Hope this helps some. Good luck. Mike Aug 21, 2013
Reply to Michael Good answer? Yes (0) No (0)
James H: Tim, I couldn't tell you for sure. Bought mine for racing last year and honestly never had a chance to try it. Sorry couldn't help you out. Anthony's reviews are usually very helpful in making decisions on size. Plus, their return policy is awesome if you are not satisfied. Aug 20, 2013
Reply to James Good answer? Yes (0) No (0)
Peter CStaff: Hey Tim. Yes, I think the L would do it for you. I'm 6', 34" waist, 195lb and bought the XL based on their measurements. I think I'm going to actually sell the one I got and buy get the L when I have a chance. Hope that helps! Aug 19, 2013
Reply to Peter Good answer? Yes (0) No (0)
Mike B: Hey Tim,
I'm 6" and just shy of 215 pounds. I wear a large and it covers my spine just perfectly. I think the Large would suit you too and the XL would be too much. Hope that helps.
Mike
Sep 1, 2013
Reply to Mike Good answer? Yes (0) No (0)
manuel s: Hi Tim,

I'm 5'9" 180 lbs. I got the Large and it thinks it's a bit long. Wish I would have ordered the medium. Hope that is of help.
Aug 19, 2013
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Kenneth H: Hi! On my response the other day! Forgot! Torso measurments is the most important. Want max back coverage possible.

Ken
Yuma
Aug 20, 2013
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Gregory B: I think so. The protector belts are adjustable. It is plenty long, extending well over the tailbone, so I don't think you would end up short. Aug 19, 2013
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Maria M: My husband is 5"10' 180lbs and large is too big for him. I think medium would be a perfect fit.. Aug 19, 2013
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Robert M: I'm 6'1"/205 w/a 46" chest and have a large. IMHO the large would be to big for you. Aug 19, 2013
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Nikolay K: I am 6'3 and the xl fits me perfect, so if you are 5'11 i would go with the L Aug 19, 2013
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Michael G: you'll be fine ... Excellent choice by the wat... Aug 19, 2013
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A shopper asked: Hi guys,

Looking at the Pro Sub 4, trying to determin the right size.
I am 5'11" or 6 foot depending on the day and the ruler, I am thin though which affects the waste straps. 34" waist. According to the size chart I would probably be at the edge of medium and the beginning of large. My instinct is to go for the longer large but I am concerned the straps will be too stout.
What do ya' think?

Thanks,
Adam
Jul 15, 2011
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med23: I am 6'2" and 210 pounds. I use the large ProSub4 and it is perfect. I would think that the medium might be better for your height and thin build as you described. My only reservation would be if you have a very long torso...in which case you might need the extra length of the large. The straps on the large also might give you too much material and be a bit sloppy under your suit. They gave a lot of material for a huge spectrum of torsos, which you don't need to worry about. Go Medium...and Revzilla is amazing at return/exchanges so you can't go wrong. Jul 16, 2011
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Mike37: Adam,

I am 5'10" about 180 lbs with a 32" waist and I got the large. It actually was barely a bit to big for me but the straps have tons of velcro that you can tighten it with. The length on my back was just a bit long but I would take longer over shorter any day of the week. The back protector also fit very well under my leathers and didn't cause any discomfort while riding on the track. It also provided excellent protection when I high sided at around 80mph.

Hope this helps,

Mike
Oct 8, 2012
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Blonderhanz: I'm 6'0" at around 195 with a waist around 36-37". I just got the large Sub 4. As far as fitting the length of my spine, it is perfect. But you are concerned about the waist strap. The strap is long, even for me, and I may have to someday have it shortened. With your smaller waist the large's waist strap will be way to big, try the medium, or modify the waist belt on the large. Sep 28, 2011
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freepers: I had a similar conundrum. I choose the large size as for my sub 4 back protector. I went the smaller direction due to similar circumstances for my previous back protector and in retrospect should have gone the larger size.

Get someone to take three or four measurements, then average them. This will give you the best fit.

Hope this helps.
Oct 29, 2012
Reply to freepers Good answer? Yes (0) No (0)
billyb39: Adam,

I'm not sure if you made the decision yet, but I wear 36" waist pants and I just purchased the large. They are a little loose for my taste, so I'd recommend you go with the medium. If I had both side by side to try on, I probably would have purchased the medium.

Will
Aug 1, 2011
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MrDsylexia: I too was between sizes but as Anthony in the videos always says, "if you are between sizes, go for the next one up". The Large protector fits me perfectly. I am also 5'11/6' and 38 waist, it fits fine and has a lot of room to spare/ great adjustability. Nov 17, 2012
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MotoLeo: Adam, I am 5'9" with a 33" waist and wear a medium. The protector fits well and I have plenty of room to adjust. I would think that you would still fit in a medium. Aug 21, 2011
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MCMD: I'm between 6'1" and 6'2" with a 32" waist. I just bought the large and it's easy to get a good fit from the straps. Buy based on your height. Sep 5, 2011
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Pedro: I'm 5'11 and 1/2" Thin too. 32 pants. I got the large and it fits perfect. Straps fit snug. Go for the extra coverage. Oct 10, 2011
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WaldoT: Dear Adam,

Excellent choice! I am 6'6" and wear the large. Go with the medium instead.

Waldo T.
May 8, 2012
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Adam26: Thanks to all the respondants.
Adam
Sep 28, 2011
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A shopper asked: How thick is this back protector? I have read in numerous reviews that you need to account for the extra room beneath your riding gear. How much extra room are we talking here? I currently have a Dainese Thorax Wave Pro (too big for me, and smaller size is unavailable). Would it take up a similar amount of room? May 20, 2014
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Justin R: It is quite thick, though in comparison to the dainese it is more flexible and more comfortable. It is probably 3/4"-1" thick.

This probably won't be an apples to apples comparison, as the Thorax Wave pro is a whole armor jacket with chest protector - or did you mean just their bac protector?
May 20, 2014
Reply to Justin Good answer? Yes (1) No (0)
Andrew D: It's about an inch and a half thick. Unless you have a rather baggy jacket you're going to be able to see a large hump on your back with it on. With my street and steel jack size large it's pretty noticible but with my spidi leather jacket it's better. I'm about 6'2" and ordered the large and it comes down to the bottom of my tailbone which I like. I've never tried on the Dainese protector you're talking about so I can't really compare. It is rather flexible, much more than any hard shell protector. The only loss of comfort is the space it takes up. I bought it to use while stunting in a parking lot. I rarely wear it under a jacket. What I do is wear the alpinestars bionic mesh jacket with their back protector swapped for the sub4, some elbow pads, and wear a mx jersey over everything. It's great when it's hot out. Overall I'm very happy with it and I'd say if you're willing to sacrifice a moderate amount of room under the jacket for superior protection then I would buy it. Hope this helped May 20, 2014
Reply to Andrew Good answer? Yes (0) No (0)
Thiago M: The protector is around one inch thick. You do have to account for the extra room, but it's not so bad. In fact I wear it with jackets that have other forcefield inserts just as thick, so around 2 inches total. As both the jacket's and the vest are fairly flexible, it doesn't bother me much, even if quite thick. May 25, 2014
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John L: Yes the Forcefield Back Protector Pro Sub 4 is slightly thicker, I had to remove the back pad that came with my suit and fits perfect. Since you suit is a little big this will help with fitting. in addition I added the Forcefield amor shorts for complete protection. Hope this helped you with making a choice. May 20, 2014
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Nick S: Based on a quick measurement, I estimate about 1.5" thick. My suit used to be too loose in the stomach and back, but with the back and chest protectors, it fills out. This is actually a good thing... May 21, 2014
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Francis S: It is 2 layers of 1/2" material and the thickness is from edge to edte.

If you follow the chest size +1" for your jacket or suit, you should be fine.
May 20, 2014
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A shopper asked: Is there a similar level chest protection? May 15, 2014
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Tyler E: In terms of thickness and impact absorption, no; however, the Forcefield chest protector is more than enough. It is still thicker than most and made up of the same layering of composites and it lets the air pass through to your chest. I do not feel ready to ride unless I am wearing the Pro Sub-4 and the chest protector.
Make sure everything fits under your leathers. I got measured up for a set of custom leathers with my chest and back protector on and I am so glad that I did. While the back protector or chest protector might fit under your existing leathers, together, they are unlikely to fit unless you leather are too big. otherwise.
May 15, 2014
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manuel s: I don't know if they offer chest protectors. I purchased the back protector and it's of superb quality. If the offer a chest protector I'm sure you'll be happy with it. May 15, 2014
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John L: All I use is forecfield products because of their quality and level of protection they offer. May 20, 2014
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Christopher S: The Forcefield Elite or Race Lite chest protectors might work for you. I use the latter. May 15, 2014
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Wendell L: Forcefield elite chest protector. May 19, 2014
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Rob B: I don,t know May 15, 2014
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Benjamin K asked: I currently use an older Technic/Knox full back protector, but it is 10 years old and of the one shot variety. I am very impressed with the specs on the L4 unit and the fact that taking a hit will not deplete from its ability to take another impact at the same point. However, it seems to be made out of a rubbery material and I am wondering how long it's good for until it starts decomposing? Is there a warranty? Feb 25, 2014
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Kenneth H: Hi! I do not know if any warranty? I have one and like it, not sure now how long I had it - I guess about 2 years or so. It is very good and seem to me will last many years! I live where it gets to around 45 C or 120 F in the summer! I have no problems with the sub4 and ware it when every I ride my bikes. both on and off the road.

Yes, expensive, but I believe will be happy with it over the short and long run - I am!
Oh! If tight jacket - will need to get a bigger size with the sub4.
Enjoy!
Mr H
Mar 2, 2014
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Michael G: This is an excellent product , multi-impact , will save your bacon
hope you never have to us it , but if you do, you will be glad , get a chest protector too .. Be Safe
Feb 28, 2014
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Product Style RevZilla SKU ID Manufacturer Product # Availability
SM 617815 FPS-4-2-S In Stock: Ships within 24 hours
MD 617816 FPS-4-2-M In Stock: Ships within 24 hours
LG 617817 FPS-4-2-L In Stock: Ships within 24 hours
XL 617818 FPS-4-2-XL In Stock: Ships within 24 hours