Men’s jockstrap underwear Men’s underwear made from polyester/cotton Machine wash Imported GBGB underwear style GBGB2JKYLE Say it loud. The Kyle men's jockstrap underwear from GBGB sports the signature sturdy construction with an added design flair. Featuring unique lines and a small opening at the front, this GBGB jockstrap underwear is fun, sexy and super comfortable too. Choose your jock in black or white, both with eye-catching contrast trimming.