Speedo Men's Summit Square Leg Swimsuit 90% Polyester/10% Spandex Lightweight 4-way stretch for optimum comfort Front zipper with snap closure for secure fit Trademarked speedry water repellant fabric for quicker drying and long lasting durability Block the burn with upf 50+ offers tighter knit fabric for higher level of sun protection Made by speedo, the world's #1 swim brand