Baffin - Impact (Pewter) - Men's: Truly a collection designed for serious outdoor enthusiasts, Baffin's Extreme Climate Boots have proven themselves throughout the globe to keep feet warm, dry and comfortable. Comfort rated to -100C/-148F. Baffin's Extreme Climate removable inner boot system provides light-weight thermal insulation and moisture management to withstand the most unforgiving cold. These boots also feature the GelFlex shock-absorbing system and an aggressive self-cleaning tread pattern for superior comfort and excellent traction. Functional styling, innovative rubber technology, and the utilization of performance materials, such as full grain Timberwolf leather, Titanium Propex and Cordura Plus insulated nylon, provide the performance and precise fit that true "outdoorsmen" demand. Easy adjust low temperature double buckle closure system for better fit. Winter-proof insulated upper and locking snow collar for deep snow protection.