NeoSkinz Wetsuits Child Short Sleeve Rash Guard UV Sun Protection Zone Shirt 100% Nylon Laminated on Neoprene Rubber Sun Protection that doesn't wash off! Kids Max UV Protection Rated 100 SPF / UPF 50+ NeoSkinz Swimwear and Hats are made with functional fabric that blocks 97.5% of UVA & UBA Rays Tightly woven with proprietary high-density yarn and four way stretch fabric is comfortable to wear, dries quickly and excellent resistance to chlorine and salt water Tightly woven high-density fabric for flexibilityand Neoprene for core-warmth