Mr. Davis Men's Trunks Cut Boxer Brief Underwear Fabric Options: 96% Bamboo Viscose 4% Spandex or 95% Wicking Poly Sport 5% Spandex Venting: 88% Polyamide 12% Spandex 4cm no fold waistband Perineal venting for maximum airflow Anatomical pouch for comfort fit with side fly