Tall height, leather and nylon upper with zipper enclosure for improved fastening, Lace-up removable inner boot system for improved fit and secure comfort, Built-in gaiter to protect from the elements, Velcro at heel to keep the removeable inner boot secure to the base shell and upper, Nylon pull-strap attachment to inner boot for ease of entry, SuperliteTM Blend compound shell for a lightweight performance fit, LiteGrip Blend base for lightweight cushioning and grip and Polar Rubber outsole for maximized grip and longevity of boot at cold temperatures, Thermawick comfortable, hi-wick next-to-foot lining material for greater breathability and improved thermal regulation and Form-fitting B-Tek Foam lining for comfort, B-Tek Lite proprietary aero-insulation blend that allows the inner boot to achieve greater thermal regulation and B-Tek Heat lightweight, 4-channel hollow-fibre insulation for high-loft breathability in a broad range of temperatures, PolyNylon blend used as an outer layer for lightweight and breathable liner durability and DiamondNet insulation for wind-resistant protection with a lightweight feel,