The Khombu Men's Climber 2 Cold Weather Boots are rugged enough to take you anywhere. It has a waterproof leather and suede combination upper. Plush fur lining and insulation keep you warm down to -20. It has a Thermolite moisture wicking, breathable, antifungal Insole. The insole is shock absorbing, to lessen the impact on your body. The outsole is non-slip so you donít lose your balance.