Men’s trunks Men’s underwear made from nylon / spandex Machine wash Imported Private Structure underwear style 99-MU-1605 Explode onto the scene in the Private Structure Color Peel Waistband Trunks, available in a variety of fun, playful colors. A wide signature waistband on this sexy Private Structure underwear tops the hunky fit you demand. Perfectly contoured where it counts, these Private Structure trunks are great for both special occasions and the everyday. Made from nylon/spandex with a subtle sheen.