New in boxKids size 4 big kid100% Waterproof from top to bottom to keep feet warm and dryConstructed with 7mm Neo-Tech waterproof insulation. Durable, hand-lasted rubber over a four-way stretch inner bootieDuraFresh natural bio-technology activates to fight odors. BOGS Max-Wick evaporates sweat to keep feet dryBLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitatsSelf-cleaning outsole. Easy on handles. Reflective temperature rating mark on heel. Comfort rated to -30°F/-34°C