Men’s mesh briefs Men’s mesh underwear made from nylon/spandex Machine wash Imported Cell Block underwear style CBB001 Keep cranking. Keep pushing. A pumped-up fusion of fashion and fetish, these hot men's mesh briefs from Timoteo's Cell Block Collection offer edgy, sexy looks for when you're ready to bust out, big time. Made from nylon/spandex sport mesh, the Cell Block Mechanic Mesh Briefs are designed 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 bold, daring underwear for men who like to play hard.