High performance sport boot with stretch-fit topline binding snugs let to keep warmth in and cold out

Fleece-lined, 2mm thermal underlay adds insulation on the inside

MS-1 molded outsole and wrap-up toe bumper provides traction, durability, and protection on the outside

waterproof, lightweight and flexible

Comfort range of -40 deg (degrees) F (Fahrenheit) to 40 deg F

Double reinforcements on the instep, heel and Achilles areas