Higher insulated children's winter boots Puffrider WP with waterproof synthetic upper and KEEN membrane. DRY and PFAS free impregnation can handle snow and rain. Combination of KEEN technology. WARM, fleece linings and Thermal Heat Shield winter insoles work as great protection against cold down to -32 °C. The insole is treated with ecological technology ECO ODOR CONTROL, which limits the formation of odor and micro-fungi. Rubber sole KEEN. FUSION with a deep tread holds perfectly. The lacing system with a cable ensures the fastest putting on. Specifications: waterproof upper made of synthetic and textile material; lacing system with a cord; fleece lining for higher thermal comfort; Thermal Heat Shield insole traps heat; KEEN rubber sole. FUSION for light weight and durability; non-staining rubber sole KEEN. FUSION; multi-directional sole pattern with protrusions ensures excellent grip; waterproof, breathable KEEN membrane. DRY; 200 g of KEEN insulation. WARM down to -32°C; Eco Anti-Odor for natural odor control; PFAS-free DWR waterproof treatment