Warm In One™
Does your baby start to shiver as soon as they’re in the water? Plenty of babies feel the cold in the pool, so you’re far from alone. We made the Splash About Warm In One™, a fleece-lined infant wetsuit, to give babies and toddlers who feel the chill a soft, cozy layer. That way they can relax and enjoy their time in the water with you.
Each suit has:
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A soft polyester fleece lining that warms up with your baby’s own body heat
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A flexible outer shell that holds a thin layer of water against the skin, where it warms up too
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Snug cuffs that keep that warmth tucked in and help hold barrier creams in place
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Full-length sleeves and legs, so more of your baby stays covered
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Sizes for babies and toddlers from 0 to 2 years
Warm In One™ keeps your baby warm, but it won’t contain leaks by itself. Pair it with a Happy Nappy™ swim diaper or a Happy Nappy Duo™ underneath so you can both enjoy a leak-free swim.
Warm In One™ comes in plenty of prints, so it’s easy to match with the rest of your baby swimwear. Whether you’re shopping for baby boy swimwear or girls’ designs, browse the prints below and pick your favorite.
Warm In One Wetsuit FAQs
Yes. A wetsuit holds a thin layer of water against your baby’s skin, and their body heat warms it up. A fleece-lined style like Warm In One™ adds a soft extra layer, so your little one stays cozy for longer, both in and out of the water.
No, and that’s by design. A wetsuit lets a little water in on purpose. That thin layer warms up against the skin and helps keep your baby snug. The fleece keeps working when it’s wet, but your baby will still be damp when they come out, so have a hooded poncho towel ready to wrap them in straight away.
If your little one feels the cold, a fleece-lined wetsuit is a good place to start. We designed Warm In One™ to help keep babies and toddlers warm in and out of the water, so they can settle in and enjoy their swim. If it’s you who feels the chill, our adult thermal swimwear is made to keep grown-ups warmer in the pool too.
If you need a warm baby wetsuit for a cooler pool, Warm In One™ is the warmest in our range. It’s fleece-lined, with full-length arms and legs, and it’s made for the babies who feel the cold most.


























