Speedos most durable fabric Endurance + features Cool Dinosaur characters. Blue and Green Contrasta so you can spot your little one anywhere. Keep your child protected from the sun with a UPF 50+ rating. This excellent sun protection allows for worry-free fun under the sun. Made from our most durable Endurance+ fabric, this swimsuit is ultra chlorine resistant. It maintains its vibrant colours and shape, swim after swim, providing long-lasting wear.