Features of the Bogs Infant Baby Bogs Butterflies Shoe 100% Waterproof Constructed with 3mm Neo-Tech waterproof Insulation BLOOM eco-friendly, algae-based EVA Footbed DuraFresh natural bio-Technology activates to fight odors Bogs Max-Wick evaporates sweat to keep feet dry Plush lining for warmth and comfort Machine washable Easy on handles Comfort rated to 14-?F/-10-?C