Men’s bikini underwear Men's underwear made from Supplex / Lycra spandex Machine wash Imported Cocksox underwear style CX16 Big, bold colors and a generously contoured pouch give the men's bikini underwear from Cocksox its eye-popping looks. Available in two contrasting palettes of lime green and royal blue or red and black, this Cocksox men's bikini underwear is ready for some serious fun. The secret to this underwear's enhancing properties is Supplex – a fabulous fabric that holds its shape (and yours), while offering cotton-soft comfort and moisture-wicking breathability.