Kids StayCool swing tank & short setA slam dunk of a tank. Lightweight and breathable, and designed for endless play on the court, in the backyard, at the park, you name it. StayCool swing tank: StayCool: 90% recycled polyester, 10% spandex UPF 50+ protection Swingy silhouette for an airy feel 4 way stretch Wicks sweat, dries fast StayCool stretch swing shorts: StayCool stretch: 87% recycled polyester 13% spandex UPF 50+ protection 4 way stretch Sweat wicking and quick drying Built in