Material: Neoprene Comfortable fit: the children's full body swimming costume is made of spandex to give you a very soft, breathable and lightweight fit, it is very comfortable against the skin and smooth, especially with a snug fit designed to reduce water resistance and increase buoyancy, providing your child with a wonderful swimming and diving experience Perfect protection: Designed with long sleeves all over, this one-piece children's swimming costume has long sleeves with UV UPF50+ sun protection to prevent children's skin burns, prevent body abrasions from reef damage and jellyfish stings, while the neatly stitched seams avoid painful rubbing against the skin, giving your child longer hours of entertainment in the water Widely available: Slip-on design with zip on the back, easy to put on and take off without parental assistance, tight, snug and quick drying, excellent elasticity provides your child with unrestricted freedom of movement, allowing your child to swim freely like a fish, perfect for beach, snorkelling, swimming, scuba diving, surfing, sailing, kayaking, canoeing, rafting, boating, wading and other water sports, a perfect gift for The perfect gift for your child Durability: 150% high stretch and excellent recovery, flat seam construction for superior strength and durability, no need to worry about rips, this long sleeve swimming costume for girls and boys will be a long term partner for your child, however, for the slim design of this children's swimming costume with full body sun protection, please do not scratch or rub on sharp and rough objects