Do swim nappies hold wee? Short answer: no. But here’s why — and what you need to know to avoid surprises on your next beach or pool day.
Do Swim Nappies Hold Wee? (And Other Things Parents Always Ask)
You’ve packed the beach bag, grabbed snacks, and slathered on the sunscreen. But then it hits you:
Does this swim nappy actually hold wee?
If you’re a first-time parent or just new to reusable options, you’re not alone.
Here’s what you need to know about how swim nappies work — and what to expect.
So… Do Swim Nappies Hold Wee?
No — and they’re not supposed to.
Whether reusable or disposable, swim nappies are designed to contain solid poos only, not urine.
Why? Because if they absorbed liquids, they’d instantly swell up the moment your baby hit the water.
This applies to every swim nappy on the market — it’s not a design flaw, it’s how they’re supposed to work.
When Should You Put the Nappy On?
Since swim nappies don’t absorb wee, it’s best to put them on right before your baby gets in the water — not at home, not in the car seat.
Need a nappy for the ride? Use a regular cloth or disposable nappy and change into the swim one at the pool or beach.
What Makes a Good Swim Nappy?
A good swim nappy should:
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Contain solids securely
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Fit snugly around legs and waist
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Be lightweight and breathable
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Dry quickly after swimming
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Look adorable in photos (obviously)
Our Reusable Swim Nappies are adjustable, double-layered, and made with a soft mesh lining to keep messes in and little bottoms comfy.
Can You Use a Regular Nappy for Swimming?
No — regular nappies will:
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Instantly absorb pool water
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Swell up like a sponge
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Weigh your baby down
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Possibly burst or leak
Stick with nappies designed for the water.
How Do I Wash a Reusable Swim Nappy?
Easy! Just:
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Rinse after use (especially after salt water or chlorine)
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Pop it in your regular laundry
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Line dry or tumble dry on low
No fancy detergents or soaking needed.
Final Word
Swim nappies don’t hold wee — because they’re not meant to. But they do hold in the stuff that matters most when you’re at the beach or pool.
Ditch the disposables and explore our range of Reusable Swim Nappies — comfy, reliable, and designed for happy water babies.