J. Crew Kids' half-zip rash guard with UPF 50+

This cool half-zip rash guard is perfect for cannonballing, boogie boarding and games of Marco Polo. Plus, it's made from quick-drying nylon, which means they'll stay comfy in and out of the water (aka no sitting around all day in a damp suit), and provides UPF 50+ sun protection (think of it as SPF for clothes, although they should still apply sunblock too). Poly/elastane. Machine wash.