The Greenbay 4 from Kamik for wide feet offers great snow protection thanks to it's 14 in. height, while being extremely warm with a Thinsulate foam liner. Rated to -40°F. Duration 600 nylon upper. Removable 200B Thinsulate™ foam liner. Lace lock snow collar. Mid-foot adjustable Velcro® closure strap. Prime injected ru Kamik Greenbay 4 Winter Boot-Wide - Men's