Kodiak GLO Gordy Lace Nautical Heavy Winter Weather Snow Boots Rubber sole Waterproof quilted nylon and nubuck PU upper with barrel lock lace system Adjustable collar with velcro strap and full bellows tongue Slip resistant natural rubber tread design with built-in toe protector and heel kicker Removable 6 mm wool / felt / polyester needle punched liner Comfort rated: -40 C / -40 F