Splash Jammer Duo™
Is your little one growing out of baby swimwear but still needing diaper protection at lessons? That’s exactly who we made the Splash Jammer Duo™ for, and it won Gold for Best Potty Training Product at the 2024 Organic Baby Awards.
On the outside, it looks like a pair of kids’ swim shorts. Inside, there’s a silver-lined inner layer, and the whole thing is made from soft, flexible 1mm neoprene with a wide, snug waistband and medical-grade silicone seals around the thighs. Together they hold solids in and stop fecal leaks getting into the pool, while your child gets a more grown-up style that suits ages 2 to 6. The shorts cut lets them move freely while they swim and play, which usually matters more to a four-year-old than anything else.
Because that second layer is built in, many swim schools accept it as a double diaper system on its own. You won’t need a separate wrap, and there’s no disposable swim diaper to fit underneath, so getting ready for a lesson really is one pair of shorts and you’re out the door. It works just as well for vacations and family pool days as it does for lessons.
If you’d like a little extra coverage and a matching outfit, pair it with one of our long-sleeved rash guards. Then browse the prints below and pick the one your child will be excited to wear. The fit is the same whichever print you choose.
Splash Jammer Duo FAQs
A regular one, like our Happy Nappy™, is a single layer. When a swim class asks for a double system, you’d add a Silver Lining Diaper Wrap underneath, and some parents use swim diaper liners to make changes easier. The Splash Jammer Duo™ has that second layer built in, so your child wears it on its own
Yes. You wash it and wear it again rather than throwing it away after each swim. We recommend hand washing in cool water and drying it out of direct sunlight. If it’s been soiled and needs a machine wash, use a cold cycle with an enzyme-free detergent, though frequent machine washing will shorten its life.
Measure your child’s waist and thighs and check them against our size guide, because the snug fit is what keeps solids in. Age is only a rough guide, since children the same age vary a lot in build. The best swim diaper for your child is the one that sits snugly at the waist and thighs without leaving deep red marks.
It’s the inner layer that makes the shorts a double diaper system. The silver fabric has also been tested to help neutralize germs found in fecal matter, including E. coli, for an added layer of hygiene on top of the leak seals.
No. Like other swim diapers, it isn’t waterproof, so pool water passes through instead of soaking in and weighing it down. That also means it won’t hold urine. It’s designed to contain solids and it’s very reliable at that, so take your child to the bathroom before they get in and as soon as they’re out of the water.