With HEAT-MX™ sustainable thermal insulation and waterproof seam-sealed construction, the Kamik® Kids Frostylake winter boots are prepared for the most unfavorable weather conditions. These come with a nylon upper, moisture wicking lining, and comfort footbed with felt lining.The round toe design, NiteRays reflective technology, and bungee lacing system with gasy-Grab lace lock are designed for convenience. Waterproof and flexible synthetic rubber outsole. Imported. View Zappos.com Glossary of Terms Kamik Kids Frostylake (Little Kid/Big Kid)