Design: Seam-sealed waterproof PU coated nylon upper keeps feet dry and comfortable Bungee lacing system with Easy-Grab Lace Lock for a secure, kid-friendly fit NiteRays reflective technology provides added safety when it gets dark In-Shoe Comfort: 8mm Zylex(R) removable liner (97% recycled content) Durability & Traction: Waterproof and recyclable lightweight synthetic RubberHe shell Proprietary technology offers traction and increased flexibility ICEWAVE outsole with multi-directional treads for stability in snowy conditions Additional Details: Comfortable down to -40degF Vegan-friendly Height: 9.05 in Weight: 1.67 lbs per pair Circumference: 10.25 in Made in USA with foreign and Canadian components