Shoulder protectors compatible with safety vests with model code RS2010. These shoulder protectors provide added protection for the shoulders and collarbone and can reduce the risk of shoulder/collarbone injuries by up to 80%. Fastens easily with velcro. With integrated holder for medical card. Size S fits children of size L-XL and small adults of size XS. Size M fits adults of size XS and S. Size L fits adults of size M and L.