Waterproof & Warm, insulation rated to -4F (-20C). Breathable mesh lining, Luftcell poly footbeds offer all day comfort with lightweight fit & feel. Footbeds are Infused with probiotic tech to keep shoes fresh. KEEN all-terrain rubber outsoles = high traction grip. Leather from highly rated eco friendly source. These are new & still in the box, from a pet free, smoke free home. I only tried them on once.