What is "snowboots"

Usage examples of "snowboots".

UNSA arctic jacket, quilted over-trousers, and snowboots, Hunt stood in the center of a small group of muffled figures stamping their feet and breathing frosty clouds of condensation into the air on the concrete apron of McClusky Air Force Base, situated in the foothills of the Baird Mountains one hundred miles inside the Arctic Circle.