One-piece swimsuit for children. Made with 1.5mm thick neoprene (front and back) and Elastane (sides, sleeves and collar). Easy YKK front zip. Offers excellent protection from the cold and the sun, and maximum freedom of movement thanks to the areas in Elastane that won't irritate the skin while swimming. Offer a good protection against Jellyfish. High quality Thermal protection that keeps the baby warm for prolonged water exposure.