Nylon snow collar to protect from the elements; Side-to-side lace fastening system with drawstring and toggle; Polar Rubber outsole for maximized grip and longevity of boot at cold temperatures; Thermaplush soft, next-to-foot wicking layer for warmth; Form-fitting B-Tek Foam lining for comfort; Double B-Tek Heat lightweight, 4-channel hollow-fibre insulation for high-loft breathability in a broad range of temperatures; Vapourized Aluminum Membrane for energy reflection and heat regulation; PolyWool polyester wool blend for breathable warmth; Hydromax layering for improved moisture management; Diamond Net insulation for wind-resistant protection with a lightweight feel