Happy Nappy™ Sunsuit
Enjoy sunny days in and around the water with the Happy Nappy™ Sunsuit, combining our award-winning reusable swim diaper with a lightweight UPF 50+ rash guard for added sun protection. Designed for babies and toddlers from 0–3 months to 2 years, it provides swim diaper protection and sun coverage in one convenient swimsuit.
Baby Sunsuit with Built-In Swim Diaper
The bottom of the sunsuit features an integrated Happy Nappy™ reusable swim diaper, with specialist waist and thigh seals designed to securely contain fecal leaks. Because the Happy Nappy™ is built in, there’s no need to wear a separate Happy Nappy™.
The lightweight, stretchy 3/4-sleeve rash guard provides UPF 50+ sun protection, helping cover areas particularly exposed to the sun while keeping babies comfortable in and out of the water. Sunscreen should always be applied to exposed skin.
Perfect for beach vacations, outdoor pools, splash pads, swim lessons, and family pool days, the Happy Nappy™ Sunsuit is a versatile choice for both indoor and outdoor swimming.
Available in a range of exclusive Splash About prints, our baby sunsuits with built-in swim diapers combine UPF 50+ coverage, reliable leak protection, and comfortable swimwear in one easy-to-wear design.
Happy Nappy™ Sunsuit FAQs
The Happy Nappy™ component of the Happy Nappy™ Sunsuit requires a correct fit for complete solid leak protection. Since babies vary in size, it's essential to measure your baby accurately and consult the size guide to ensure you purchase the right size. Measure your baby while lying flat and not immediately after a feed. Take measurements around their tummy, across the belly button, and at the fullest part of their thigh. When worn, there should be enough space to fit a finger comfortably around the edges of the seal, with no red marks
No. The Happy Nappy™ is designed to be used without any other swim diaper underneath and can be worn in this way for general swimming, inflatable pools or the ocean. However, some organised swimming classes require a double diaper system; in such cases, you will also need to purchase a Silver-Lining or Cotton Nappy Wrap to wear underneath. This system can also make changing and washing a soiled Happy Nappy™ easier.
No. As with disposable swim diapers, the Happy Nappy™ within the Happy Nappy™ Sunsuit does not hold in urine. It is designed to allow water to pass in and out of the diaper to prevent it from becoming waterlogged. However, it is incredibly reliable in containing solids
To keep your Happy Nappy™ Sunsuit in good condition, we recommend hand washing in cool water and drying away from direct sunlight. However, we understand that soiled diapers may occasionally require machine washing. If you need to machine wash, please do so at 85°C using a non-biological detergent. Please note that frequent machine washing may affect the longevity of the product.