Baffin Women's Icefield Boots The Baffin Women's Icefield Boots are designed with a remarkable temperature rating of -100C/-148F. Featuring a removable multi-layer inner boot system with double B-tek insulation, these boots provide exceptional warmth. The double aluminum insole and waffle-comb foot-bed offer additional support and the waterproof insulated upper and waterproof collar keep your feet dry. With a side-to-side webbed lacing system for a secure fit, these boots are perfect for extreme cold weather adventures. Features: Temperature rating: -100C/-148F Removable multi-layer inner boot system featuring double B-tek insulation Double aluminum insole and waffle-comb foot-bed Arctic rubber shell EVA midsole Polar rubber outsole Waterproof Diamond-Lite insulated nylon upper Side-to-side webbed lacing system Waterproof nylon snow collar