The Bonds Guyfront Trunk features a functional fly and longer pouch for extra room These men's trunks are fabricated from comfortable cotton stretch fabric with Bonds Cool moisture wicking properties to keep you cool all day The world's comfiest undies! These men's underwear trunks are made with a super soft elastic waistband, no sideseams, and tag free for ultimate comfort Our best selling men's trunk, the Guyfront Trunk is stylish and comfortable, the perfect men's underwear for everyday use Cotton / Elastane