DETAILS WINTER ADVENTURES Caribou is our favorite for cold winter activities. ; The waterproof structure of this very comfortable boot combines with suede and reinforced plastic upper. ; Caribou's iconic design provides good traction on different terrains. Upper: Water-resistant nubuck upper. ; Water-resistant construction. ; Laces are not waterproof. Insulation: Removable 9 mm washable recycled Sherpa collar inner lining. Midsole: 2.5 mm sole against cold Outsole: Handmade waterproof rubber sole with Sorel aero-trac Heel Height: 3.1 cm Platform Height: 1.9 cm Boot Height: 21.5 cm Lace Length: 109 cm Application Areas: Heavy snow;