Jockey Men's Underwear Form Boxer Brief Body-91% polyester/9% Lycra Spandex; Pouch-94% polyester/6% Lycra Spandex. Machine wash & dry. Impor Style 11066 men's Form boxer brief underwear are made from a lightweight and soft microfiber blend no-fly underwear design for support modern style boxer briefs for men sit lower on the waist boxer briefs extend to the top of the thigh