Breathable soft shell upper; Speed-lace front fastening system with pull loop at the back for ease of entry; Hiker-height for improved agility; EVA midsole for light-weight insulation and cushioning; Polar Rubber outsole for maximized grip and longevity of boot at cold temperatures; Thermoplastic Polyurethane (TPU) plate for torsional rigidity; Thermawick comfortable, hi-wick next-to-foot lining material for greater breathability and improved thermal regulation; Form-fitting B-Tek Foam lining for comfort; B-Tek Heat lightweight, 4-channel hollow-fibre insulation for high-loft breathability in a broad range of temperatures; Fixed frost plate returns heat and reflects cold for temperature regulation