Why Is the Happy Nappy Duo™ the Industry Standard in Leak Protection?

The Happy Nappy Duo™ is the world's only reusable swim nappy with scientifically proven silver technology that kills harmful germs. It provides reliable leak protection and meets swim school double nappy requirements on its own: no additional nappy needed underneath. Swim schools worldwide have trusted it since we launched it in 2021.

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If you've started looking into baby swimming lessons, you've probably come across the term "double nappy system". Most swim schools require one. And if you're anything like most parents, you've wondered whether there's a simpler solution than layering up multiple nappies on your little one.

There is. It's called the Happy Nappy Duo™.

What This Means for You at Swim School

Most swim schools insist on a double nappy system to protect pool hygiene. Traditionally, that meant buying a reusable swim nappy plus a separate under nappy or disposable liner.

The Happy Nappy Duo™ changes that. It does the job on its own. No layering. No extra costs. Just one nappy that ticks all the boxes.

In fact, 90% of UK swim schools insist on a Happy Nappy™ or Happy Nappy™ product. The specialist neoprene construction with ribbed seals around the waist and thighs creates a secure fit. It prevents faecal leaks without restricting your baby's natural movement in the water.

You can feel confident knowing your little one is protected. So are the other babies sharing the pool.

Comfort and Fit

The Happy Nappy Duo™ is made from soft neoprene that moves with your baby. The ribbed seals sit snugly around the waist and thighs without digging in or leaving red marks. Your baby can kick, splash and wriggle freely.

Getting the right size matters for leak protection. Measure your baby while they're lying flat and not straight after a feed. You'll need their tummy measurement at belly button height and the fullest part of their thigh. When the nappy is on, you should be able to fit a finger comfortably around the edges of the seal.

Check our size guide if you're unsure. A good fit means no leaks and a happy, comfortable baby.

Award-Winning Protection

The Happy Nappy Duo™ won Best Swimming Product at the Mother & Baby Awards in 2023. We'd already won that award for five consecutive years with the original Happy Nappy™, so we were over the moon to see the Duo recognised too.

We also received Gold in the Made for Mums 2023 Best Swimwear Collection. These awards are voted for by parents, which means a lot to us.

Easy to Care For

Looking after your Happy Nappy Duo™ is straightforward. Give it a gentle hand wash in cool water after each use and dry it away from direct sunlight.

Had an accident? No problem. You can machine wash soiled nappies at 30° with non-biological detergent. Just bear in mind that frequent machine washing may shorten its lifespan.

With proper care, your Happy Nappy Duo™ will last through countless swimming lessons, holidays and splash sessions.

A More Sustainable Choice

We manufacture the Happy Nappy Duo™ using recycled plastics. It's part of our "Ditch the Disposables" campaign, which we run in collaboration with swim schools and holiday parks across the UK.

Reusable swim nappies make a real difference. By choosing one, you help reduce the thousands of disposable swim nappies going to landfill each year. You save money over time too.