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 Armor, the Pro Sub 4 has RPT (Repeat Performance Technology) ensuring continued and consistent protection even after multiple impacts. 

Features:

  • Removable and washable outer cover
  • CE Level 2 Rated Protection
  • RPT (Repeat Performance Technology)
  • Comfortable and non restrictive
  • Flexible
  • Breathable
  • Molds to body shape
  • Adjustable waist and shoulder straps
  • Multi Sport use
4.7 / 5
Bang For The Buck
4.4 / 5
Protection & Durability
4.8 / 5
Features
4.5 / 5
Comfort
4.5 / 5
Style
4.3 / 5
Air Flow
4.2 / 5
Fit
Small
 
Large

Forcfield Men's Pro Sub 4 Back Protector Sizing

Size Torso Length (in)
SM >16
MD 16.5-18.25
LG 18.5-19.75
XL 20+

 

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

How To Measure

TL Torso Length While standing upright, measure the distance between your waist (typically at navel or top of the hip bone level) and the top of your shoulder, to the left or right of your spine.
Product Style RevZilla Item # Manufacturer Product # Availability
SM 617815 FPS-4-2-S Available: Requires 2-3 business days lead time prior to shipment
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 Out of Stock

Shipping

Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
4.7 / 5.0
66 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
49
15
2
0
0
Bang For The Buck
4.4 / 5
Protection & Durability
4.8 / 5
Features
4.5 / 5
Comfort
4.5 / 5
Style
4.3 / 5
Air Flow
4.2 / 5
Fit
Small
True
Large
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
4 / 5
Comfort
4 / 5
Style
4 / 5
Air Flow
4 / 5
Safest back protector currently on the market
Bought the sub4 cause I'm an ER doc and have seen too many spinal fractures from motorcycle accidents. It clearly provides the best protection you can buy. Very light weight, easy to put on, fits snug. A little bulky under my jacket and the bottom stick out past the end of my jacket. I tried to tuck it into my pants but keeps popping out when I tuck. Should be ok if you zip your pants to your jacket. Ill tolerated it though cause it covers my entire spine.
October 10, 2011
Ride:
1953 BMW R25/2
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
4 / 5
Air Flow
4 / 5
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
Ride:
2002 Honda CBR600F F4I
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
4 / 5
Comfort
5 / 5
Style
4 / 5
Fit
Small
True
Large
Air Flow
5 / 5
Works like a charm
This back protector definitely saved me from serious injury after I high sided on the track. Not only did I have zero pain or discomfort but the back protector itself is reusable even after an 80 mph crash!
October 8, 2012
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
4 / 5
Comfort
5 / 5
Style
5 / 5
Air Flow
5 / 5
Nice Back Protector
I got my protector delivered and was really curious what all the fuss was about. Now I know. This is a really nice piece. It may be a little thicker than others, but it also feels more protective than others. It is well made. The seams are nicely stitched and the materials used don't appear to be cheap. The elastics used and the straps manipulate like they are pretty robust and won't get stretched out and useless any time soon. Even the velcro in the ab belt is nice and grippy versus some I've come across. My one complaint is the abdominal belt is too long. That said, the wings the ab belt attaches to actually provide some coverage for the soft space between your ribs and your pelvis. The actual energy absorbing material is pretty cool. There are three different materials used. One is a pretty hard plastic sheet, the one against the body is similar to memory foam or those kneeling pads, and the third is the Nitrex. It feels like a hard dense rubber but when you squeeze it, it does deform, but slowly.. I'm 6'0" and the large covers my spine to the tailbone perfectly. When you first put it on it is straight, but then in about half a minute is molds itself to your back and nearly disappears as far as noticing it. It never interfered with my range of motion. Lastly, yeah, unfortunately, it is expensive.
September 28, 2011
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Air Flow
4 / 5
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
Ride:
2014 Aprilia RSV4 R APRC
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
4 / 5
Style
4 / 5
Air Flow
4 / 5
Great Product
Just wore this for the first time to a track day/school. Comfortable enough that I didn't notice it during the riding sessions, and didn't notice it being hot. The plastic adjusters on the shoulder straps were on my collarbone at one point, but a quick adjustment solved the issue - the midsection belt is really what holds it in place.

Beware - it is relatively thick. My new leathers were TIGHT without a back protector. After putting this on, the two sides of the zipper were ~6 inches apart in the chest (and ended up requiring a tailor to make alterations). I think any back protector would have required alterations for me, but most would have needed less of a change.

Still, that bulk is, I'm sure, the cause of this protector's excellent CE score. I have no doubt that it would protect me in a crash. Also seems to be excellent craftsmanship.

For reference, I am 5'5", 140, 37 inch chest, and got a size medium. With my small stature, the tailbone protector extends just a bit beneath a leather jacket, and could cause a bit of discomfort on a touring/standard bike, but is fine when tucked on a sportbike.

All in all, highly recommended, as long as you're ok with the extra bulk.
October 29, 2012
Ride:
2012 BMW F650GS ABS
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Air Flow
5 / 5
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
Ride:
1992 BMW R100GS Paris-Dakar
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Air Flow
5 / 5
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
Ride:
2012 Honda CBR1000RR
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Air Flow
5 / 5
Excellent Back Protector
Very light weight, comfortable and breathable.
I use the shield on long day trips (about 500km) and I have nothing to complain about. Due to its flexibility, it adapts perfectly to your body shape.
December 15, 2014
Bang For The Buck
3 / 5
Protection & Durability
5 / 5
Features
4 / 5
Comfort
5 / 5
Style
3 / 5
Fit
Small
True
Large
Air Flow
4 / 5
The Best you can have
excellent product that provide the best sub 4Nm protection for the back.Quite thick padding which not suit those slim line riding jacket however a back protector is better then none.
January 16, 2012
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