Forcefield Back Protector Pro Sub 4

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.

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.

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!

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.

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.

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.

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

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.

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.

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.