Excellent fabrics: 80% Polyamide and 20% Elastane,high quality assured rash gurad swimsuits for boys.No deformation, durable: Shark Printed,,Highly chlorine and salt resistant fabric,low water retention and extremely quick drying.Four-way stretch and shape memory.Soft, Close skin,Great gift for little oneBest swimsuit for a boy: Long sleeve bathing suit rashgurad swimwear with long sleeves,designed with high collar To avoid scratch for optimal sun protection.effectively resist ultraviolet ray, protect children's skin.Multiple purposes: Boys Sun protective swimsuit fabrics are rated UPF 50+ and provide maximum UV sun protection by blocking 98% of UVA + UVB sun rays, wet or dry; similar rating as SPF for sunscreens. Great for the Beach, Lake or Pool and excellent for learning to swim or for extended periods in and around the water.