+ Lightweight high impact .120 gauge polyethylene molded plastic on arches + Double curved molded .140 gauge polyethylene molded epaulets + Adjustable neck opening + Redesigned, long lasting "B33" elastic + Built in lace-ties + A perfect complement of open and closed cell foam is encased in a durable 210 denier nylon body that resists water and perspiration Shoulderpad Sizing Chart