Required by most swim schools and public pools, reusable swim diapers are great alternatives to disposable diapers. Snug elastic around waist and legs create a secure fit to contain solid waste. FINIS provides an array of sizes that translate into comfort for the baby and confidence for the parents. A soft woven polyester lining gives the diaper an extra soft layer against the baby's skin. UPF 50+ keeps harmful UV rays away from sensitive areas. Phthalates and PVC free.