David Archy Men's 4 Pack Stylish SurDry Tech Polyester Sports Trunks 52% Cotton / 40% Polyester / 8% Spandex The new SurDry functional fabric is ultra fine, breathable and features moisture wicking properties Superior U-style pouch design gives perfect support and comfort Give you all day comfortable breathe stretch Innovative 3-D logo waistband design for a stylish and sexier look without sacrificing function Machine washable in cold water; recommend 1-2 size up for good fit