The Columbia Bugaboot Plus Boot is the perfect to put an end to freezing toes. This boot features our new Omni-Heat technology which retains his own body heat, boosting his natural thermo-regulation superpowers to battle winter's chill. Features Waterproof suede & PU coated leather upper. Omni-Heat insulation & lining for additional warmth. Injection molded waterproof thermal rubber outsole provides lightweight durable protection. Weight: size 1 pair = 15.4oz/436g.