Flap Happy Baby Boys' UPF 50+ Graphic Rash Guard And Swim Trunk Set Top: 80% Nylon, 20% Spandex; Bottom: 100% Polyester Made in US Machine Wash Two-piece set with graphic rash guard and swim trunks Bright, fade-resistant color Swim trunks feature built-in mesh liner Lightweight Upf 50 plus protection from the sun