| Product Review: Built into the bottom completely around the foot is cellular foam and 200 grams of Thinsulate insulation All this plus an extra thick removable felt liner. Topline's warmest boot built for extreme conditions Tested in -50 degree Fahrenheit temperature Genuine leather uppers with speed lacing D-rings and eyelets 100% waterproof rubber bottoms with Pro-Grip outsole for super traction on ice and snow Available in Black | 
