Ouber Men's Sporty Jockstrap Jogger Boxer Briefs Athletic Supporter Gym Underwear Polyester-blend Great-looking, comfortable jocks made of pre-shrunk, high-performance fabrics which keep their colors after repeated use. Wear them as underwear, at the gym or for sports. Soft, accommodating, stretchy knit pouch with rubber support ribbing. Please use care when choosing your size; Ouber uses a different sizing method from most Asia manufacturers - we suggest choosing a size up.