Reusable Swim Nappy FAQs: Fit, Wee, Poo & Washing
Clear answers to the questions parents ask most about reusable swim nappies, including sizing, fitting, wee, poo, washing and what to pack for swimming lessons.
Written swim nappy fitting guide
- Place the swim nappy with the Sarah-Jane Collection logo at the back.
- Fasten the waist studs evenly on both sides. Start with the smallest setting closest to the logo and move outwards as your child grows.
- Adjust the rise using the nine studs on the front. Fasten the top and bottom rows together for the shortest setting, use the top and middle rows as your child grows, or leave the rise fully open for the tallest setting.
- Check that the waist and leg openings sit securely without digging into the skin. The fit should be snug enough to help contain solids while still allowing comfortable movement.
What size reusable swim nappy does my child need?
Sarah-Jane Collection offers two adjustable sizes:
- Standard: approximately 4.5 kg to 12 kg.
- Large: approximately 10 kg to 18 kg.
The ranges overlap because children have different body shapes. Choose based on both weight and current fit. If your child is close to 12 kg or has a broader waist or thighs, the large size may provide a more comfortable fit.
Do swim nappies hold wee?
No. Reusable and disposable swim nappies are designed to let liquid pass through rather than absorb pool or ocean water. Their main purpose is to help contain solid bowel movements. Change your child into the swim nappy shortly before entering the water.
Does my child need an insert or normal nappy underneath?
No. Use the reusable swim nappy on its own. An absorbent insert or everyday nappy will soak up water, become heavy and may affect the fit.
Do reusable swim nappies contain poo?
Swim nappies are designed to help contain solid bowel movements. No swim nappy can guarantee containment of every loose or runny bowel movement, so leave the water and change your child immediately if they soil the nappy.
What are the nine studs on the front for?
The front studs change the height, or rise, of the nappy. This allows the same nappy to adjust as your child grows. Keep the settings even on both sides and check the fit around the waist and legs before swimming.
How do I wash a reusable swim nappy?
Remove solids into the toilet, rinse if needed, then hand wash or machine wash on a gentle 30°C cycle using a suitable detergent. Do not use fabric softener. Line dry in the shade and follow the care label supplied with your product.
How many swim nappies do I need for lessons?
One is enough for a short swimming lesson, but two is the practical choice. Pack one to wear and one clean spare in case your child needs changing. A waterproof wet bag keeps the used nappy separate from towels and dry clothes.
When should I change the swim nappy?
Change it immediately after a bowel movement and after the swimming session. Do not use a wet swim nappy as an everyday nappy on the trip home.
Shop reusable swim nappies or compare our standard and large sizes.