This is greatest boots selections store and most wanted model for shopping. We have free shipping for the Columbia Bugaslip Black Footwear: Lightweight, warm, and tough enough to handle all types of cold weather. ; Waterproof leather upper. ; 200 g. Thinsulate insulation to keep you warm. ; Techlite cushioning technology delivers consistent and lightweight support. ; Contour Comfort footbed is constructed to interact with the natural contours of the foot, providing ideal support and all day comfort. ; Injection molded midsole. ; Winter Omni-Grip outsole has a combination of soft rubber compounds that are tactile on ice with firm compounds that provide durable traction on snow. ; 6.50 shaft height. ; 15.00 circumference. ; 21.00 oz. ; Product measurements were taken using size 8. Please note that measurements may vary by size.