The Splash Jammer Duo features a silver-lined inner layer that has been scientifically shown to target pathogens found in fecal matter, helping neutralize germs before they reach the pool water.Made from 1 mm thick neoprene, the Jammer Duo fits comfortably with a wide, snug waistband and medical-grade silicone seals around the thighs to help prevent solids from escaping. The addition of the silver-lined layer transforms this style into a true double-layer swim diaper system, required by many swim schools and designed to actively work against germs before they leave the garment.Silver ions work alongside chlorine to help combat pathogens that can cause stomach bugs, such as Cryptosporidium and E. coli, helping keep the pool safer for your toddler and other swimmers.The Splash Jammer Duo is designed to be worn on its own, removing the need for a disposable swim diaper underneath. This not only saves money over time but also helps reduce the environmental impact of disposable waste.