I hurt my shoulder and was looking for a protector that would provide some shoulder impact protection. The Airframe visually looks like it provides the most. I tried it out the hard way this past fall. I was trail riding with my friends and was running 5th gear at a fairly fast pace down a road. After a creek crossing, out of nowhere popped up a boulder size rock and I hit it and endoed at high speed. I landed in a rock bed pretty solid only to get hit in the back by my bike. I got a concussion and severly broke my finger. I ripped my riding pants, tore my jersey ruined my helmet and totally demolished my chest protector. It was a major wreck. To my amazement, especially after looking back at that rock bed I tumbled through I could not believe that I did not hurt my chest, shoulders, collarbone or anything. Even though I totally tore chunks out of the protector and ripped it apart, I can not believe how well the Fox airframe kept me from getting hurt in its area it protected. Even getting hit by my bike. I recently purchased another one to replace the one I had on and now I will not ride without it. I highly recommend because I feel it offers the most protection of any chest protector I have been able to find.