The Happy Nappy Wetsuit is an ideal choice for baby swim time, combining the warmth of a neoprene wetsuit with the reassurance of an award-winning Happy Nappy Swim Diaper-so it s the only swim outfit your baby needs.Made from supple 1 mm neoprene, the wetsuit keeps your baby s core warm while 3/4-length sleeves leave little hands free to splash and play. The integrated Happy Nappy Swim Diaper allows legs to move freely for kicking and early swim movements, and a back zip from neck to waist makes changing quick and easy.The built-in Happy Nappy Swim Diaper is designed to be worn on its own, with no disposable diaper required. Perfect as a starter suit for babies beginning their swimming journey, this versatile style is also great for outdoor wear. Made to Upf 50+ standards, it s ideal for backyard play, splash pools, and beach days.