Tested at both the North and South Poles, The Baffin ICEFIELD performs flawlessly under the most demanding conditions. ICEFIELD is appropriate for extended periods of time in extreme cold weather, snow and/or ice-covered environments, where activity levels may be low to moderate. Boasting the most comprehensive inner boot system, ICEFIELD features the highest level of cold comfort in the Baffin range. Insulation level: Removable Comfort-Fit multi-layer inner boot system Waterproof level: B-Tek Dry Waterproof Base Snowshoe compatible Technology Upper: Nylon upper insulation for wind-resistant protection with a lightweight feel Side-to-side lace fastening system with drawstring and toggle Nylon locking snow collar to protect from the elements Base: Arctic(TM) Rubber shell to provide lightweight flexibility, cold-resistance and resilience