Introducing the Jammers DUO, a double layer nappy system in one, including a built-in anti-bacterial silver lined under nappy, same as our Happy Nappy DUO. The Jammers DUO offer similar features to the Original Jammers -same first class protection against code browns in the pool than Happy Nappy, but in a more "grown-up" style, plus improved design for ultimate defence in preventing solid leaks entering the pool. 👌