The Sorel 1964 Pac Nylon Boot - Men's is an insulated boot for exploring winter. Tromp around outdoors, whether working hard or off on an adventure, feet stay protected inside the waterproof nylon upper with seam-sealed waterproof construction. Down low, the vulcanized rubber shell provides durability and additional waterproof protection, while creating the herringbone outsole underfoot. A 7 and a-1/4-inch shaft height keeps deeper snow out, and the recycled felt inner boot provides heat.