Snow day = play day! The Frostylake kids' winter boots are designed to keep their feet toasty warm during all their frosty adventures. The seam-sealed waterproof nylon and synthetic leather upper, HEAT-MX thermal insulation, and faux fur collar work to keep the dampness out and the warmth in. With an easy-to-use bungee lacing system and NiteRays reflective patches, these boots shine in safety and convenience.