The Kamik Iceland Winter Boot - Women's is a winter boot for warm feet in super cold temperatures. The snow and cold is meant to be enjoyed and feet will be toasty warm in this boot as it's rated for temperatures down to -40F. A genuine leather upper with waterproof and flexible synthetic rubber shell holds up to abrasion and tough adventures. The waterproof PU seam-seal keeps the wet out, and a HEAT-MX 145 thermal insulation is toasty warm. The DEFENDER2 outsole provides stable traction when walking on ice, snow, and mud.