Columbia Youth Bugaboot Celsius Waterproof Winter Boot - A thermal-reflective lining and plenty of insulation in these waterproof-breathable boots keep toes toasty all day. A bungee closure lace system makes it easy to boot up for snow play. Waterproof PU coated leather and textile upper Omni-Tech waterproof breathable construction Omni-Heat reflective lining 400g insulation Bungee closure system Injection molded rubber shell/outsole Leather/Textile upper Rubber Outsole Style: 1945701