Easy to use, easy to release bicep cuffs to hold you in place. Soft and plushy on one side, with designer fabric on the other. Comfortable, adjustable cinch design with superior support. Bicep cuffs adjusts up to 17"/42cm. Strap adjusts up to 16.5"/43.25cm, Strap adjusts up to 16.5"/43.25cm Polyester (fabirc, lining, velcro) PP (Strap, buckle)