String with swell function & press studs on crotch Puts a man's best asset in the limelight Wonderfully shiny and comfortably stretchy Show what you have to offer! You can be ready for any occasion in this shiny stretchy black string, thanks to the pouch that can be removed using the press studs. Your best asset will also look even more impressive, thanks to the swell function hole. 92% polyester, 8% spandex.