Men’s jock briefs Men’s mesh underwear made from nylon/spandex Machine wash Imported Cell Block underwear style CBB002 It's not over until the last bell rings. A pumped-up fusion of fashion and fetish, these hot men's jock briefs from Timoteo's Cell Block Collection offer edgy, sexy looks for when you're ready to bust out, big time. Inspired by classic boxing shorts, the Cell Block Prizefighter Jock Briefs are made from nylon/spandex sport mesh to keep you cool, even when things start heating up. Contrast trim, striped signature stretch waistband and a contoured pouch all add up to create explosive underwear for men who like to play hard.