A classic combination of navy and yellow, this Happy Nappy Duo Swim Diaper offers a stylish, vibrant look for little ones. Perfect for adding a touch of sunshine to swim time. The Happy Nappy Duo Swim Diaper is the most advanced reusable swim diaper in the world. It’s the only diaper system you will ever need for your baby’s swim class. The classically form fitting outer layer is still the Happy Nappy Swim Diaper you know and love, effectively preventing fecal leaks into the pool, but inside is a highly technical active silver inner layer, which is scientifically proven to kill pathogens that cause tummy bugs like Cryptosporidium, E.coli and COVID 19. Killing these bugs inside the diaper, before they can enter the water, makes the pool safer for your baby and for other swimmers too. Working with one of the world’s leading virologists and four years in development, the Silver lined inner layer is extremely gentle on babies' skin, but highly effective in destroying pathogens that can be found in fecal matter. That’s not all! Because the Happy Nappy Duo Swim Diaper has been approved by swim schools as a double layer diaper system, it means you no longer need to buy disposable swim diapers to wear under the Happy Nappy Swim Diaper. Not only will this save you money, it also benefits the planet by reducing the millions of tones of disposable diaper waste generated each year, which can take up to 500 years to decompose in landfill. Long lasting, reliable and with a naturally antibacterial layer to help stop the spread of infections, the Happy Nappy Duo Swim Diaper really is the only swim diaper you will ever need.