Waterproof Boots for Kids: The waterproof membrane keeps water and debris out and is resistant to 10,000mb pressure/4 hours; the reflective PU overlay on the sledding boot's heel adds visibility for safetySnow Boots for Kid: The deep-lugged TPR rubber outsole offers good grip on wet, snowy terrain while the rubber toe cap adds durability and protection; this boot is still lightweight and flexible for fun winter games and sleddingInsulated Layers: These winter boots for kids have a thermal insulation layer that keeps feet warm with 360-degree insulation; the fleece lining and thermal