The outer shell is made of quick-dry cotton and interior briefs are made of EVAP poplin nylon that dries fast and stays comfortable wet or dry. The two grommets in the rear of the trunk allow air to escape when submerged so you never have an inflated swim trunk when getting in the water. The super-soft interior waistband keeps the elastic waistband comfortable to wear all day. We topped it off with our embroidered duck on the front and the chino label over the back pocket.