The Caribou is a favorite for everyday cold weather activities. & heavy snow. FEATURES: + seam-sealed waterproof construction, with a suede and ballistic nylon upper + Iconic Caribou lug design provides proven traction on various terrain. + Removable 9mm washable recycled felt inner boot insulation with Sherpa pile snow cuff. + Handcrafted waterproof vulcanized rubber shell with Sorel aero-trac non loading outsole. + Boot Liner: Women's Caribou 9MM Thermoplus Innerboot Fit Tip: This boot runs a little large due to the tough, roomy liner that's perfect for thick socks. Consider sizing down.