From swimming pools to backyard sprinklers, kids love splashing around in water on a hot summer day. Keep them cool—and protected—with this swimwear made of UV-blocking fabric.

J.Crew Crewcuts

J.Crew Crewcuts girls rash guard set in vibrant pink combo floral, $60 (sizes 2 to 14), and boys swim trunk in yellow green palms, $55. Sizes 2 to 16.

Mott50

Mott50 girls Mini Kelly long sleeve one piece swimsuit in viva Portugal, $56, and boys Mini Major boardshort in avocado, $48. Sizes 2 to 10.

Mini Boden

Mini Boden baby appliqué rash guard set in ivory/boto pink strawberry, $32, and sunsafe summer surfsuit in bold blue dino, $45. Sizes 3-6m to 3-4y.

Athleta Girl

Athleta Girl mock neck rash guard in wave break, $32, and matching reversible bikini bottom, $28. Sizes XS/6 to XXL/16.

Note: Swimwear pictured provides UPF 50+ protection.