- Outer: 90% Fair Trade Natural Rubber and 10% Synthetic Rubber - Lining: 85% Natural Rubber foam, 15% Synthetic Rubber wrapped in Recycled Polyester - World's first Fair Trade natural rubber children's waterproof boot - Our natural rubber is tapped in Sri Lanka under Fair Trade conditions by Fair Rubber, ensuring the working and living conditions of the primary producers of natural latex. The natural rubber is tapped in a way that ensures the natural life cycle of the trees (around 20-30 gram from each tree every day). - Knee length - Easy to clean matt finish - 100% waterproof - Breathable - Lined for extra warmth and comfort - Round-toe - Easy to put on with pull-on tab at the back - Unisex and robust so they can be passed along when one child grows out of them - Calendar soles provides excellent stability on uneven terrain