Shock Doctor Men's Power Compression Short with BioFlex Cup Versatile compression shorts constructed with snug four-way stretch material, which wicks moisture away from skin.Sleek-fitting design incorporates flatlock seams and unique, wraparound X-FIT cup retention system with integrated BioFlex Cup for maximum protection BioFlex cup includes vented bio-shape body and gel perimeter pad; X-Pocket securely keeps cup in place X-Fit cup retention system provides closer, more comfortable fit.Double Layer thigh compression for extra protection BOYS--cupsize- peewee: xxs- 19-20,xs- 20 to 22, cupsize- youth : small - 22 to 24, medium 24 to 26, large 26 to 28 cupsize-teen: XL -28 to 30 MEN'S : cupsize- adult: small - 30 to 32,medium 32 to 34,large - 34 to 36,XL - 36 to 39, XXL - 40 to 44