The THERMO KIRUNA tan waterproof winter boots from MERRELL protects from wet conditions for warmth on winter hikes. M Select DRY impermeable membrane seals out water and lets moisture escape. Waterproof PU coated leather and mesh upper with a bellows tongue that helps keeps debris out. Heat-reflecting insole radiates body heat back toward the foot. Merrell Kinetic Fit BASE removable contoured insole for flexible support.