Columbia Bugaboot - Women'sThe Columbia Bugaboot is a comfortable, waterproof winter boot that is engineered to get you through those cold and snowy days. The upper is made with a combination of leather and an injection molded shell insulation to bring warmth and all-day comfort. The midsole features Techlite? insulation for lightweight cushioning and the Omni-Grip? rubber outsole offers traction on slick surfaces.