These kids' waterproof mittens are made from a comfortable, stretchy material and have a soft brushed polyester knit lining.These children's waterproof mittens have a soft brushed lining for added warmth and comfort. The welded seams help make sure that they keep wetness away from skin. The flexible material doesn't harden in frost with warm gloves underneath, these Reima rain mittens for children can also be worn on colder days. They're made from a safe, PVC-free material with reflective details to keep kids more visible when it's darker outside.