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