MEANT FOR BOHN SHIRTS, FLANNELS AND JACKETS. Soft, ventilated, and super comfortable back protector fits into our current shirts, flannels and jackets. It not only meets but exceeds Level 2 certification and is multi-impact compliant. This means that, unlike other manufacturers’ back protectors, it remains fully functional even after repeated hits. Fits Bohn shirts in sizes XS-6XL and 1X-4X for women and men and all flannels, jackets and sweatshirts. Fits Bohn flannels and jackets in sizes S-5XL 12.5 in wide x 16.75 in long, .78 in, 11oz. Replacing a back protector from another manufacturer?Please measure the dimensions for your current back protector. The dimensions should be close or exact: 12.5 in wide x 16.75 in long, .78 in, 11oz. Customer Review Video Back armor is sold individually, so please order one piece per garment.