The recipe for Caribou boots is traditional: the lower part, which has the most contact with water and slush, is guaranteed waterproof rubber, while the shaft is made from a different materialin this Felt model, neat felt. The construction also includes a waterproof layer in the shaft. Inside are detachable 9 mm thick wool felt liners. They can easily be taken out at the end of a long day to air out and dry. As a relatively heavy and spacious boot, the Caribou is a good choice for situations where you dont need to walk long distances but require strong insulation in proper freezing conditions, including when standing or sitting still. - Wide and slightly short last - Waterproof construction - Taped seams - Long-pile fleece at the liner openingnot just decoration, but prevents snow from getting inside - 2.5 mm wool felt insulation in the midsole - Outsole made of vulcanized rubber