The Happy Nappy DUO™ is an all-in-one reusable swim nappy that combines an approved inner layer and the trusted Happy Nappy™ outer layer in a single product.

No. The Happy Nappy DUO™ already contains both layers required under the Water Babies Double Layer Nappy System, so no separate inner nappy is needed.

Yes. The Happy Nappy DUO™ meets the requirements of the Water Babies Double Layer Nappy System and can be worn on its own during lessons.

The all-in-one design makes changing quicker and easier while reducing the number of items you need to pack for lessons. It's also reusable, helping to reduce the number of disposable swim nappies ending up in landfill or being incinerated, making it a practical choice for regular swimmers and environmentally conscious families.

There's no need. The Happy Nappy DUO™ already contains the required inner and outer layers. Many parents choose to add Biodegradable Bamboo Nappy Liners instead for easier clean-up.

The Happy Nappy DUO™ should fit snugly around your child's waist and thighs. A close fit is essential for effective leak protection and comfortable swimming.