Been using the POC protector for just about 3 years now and have to give it a 5 star rating. Super comfortable and with the straps that could be clipped on and off on both sides, you have the option to position the adjustment buckle so it does not chafe you under the arms. I am 5'8 and have the size L, and it covers my spine properly. In fact so well that in three years I have walked away from many falls and slips on rails and in between trees with no serious injury, all thanx to this sweet piece of gear. The foam and padding also vents pretty well and even after 10 days of continuos spring time riding it did not build up any odors. Every end of season I simply rinse it with lukewarm water and leave to air dry. I would highly recommend this to anyone who goes onto the snow.