SOREL Caribou Horizon Gore-Tex® Waterproof Boot (Men 。These waterproof pac boots feature a nubuck leather upper paired with a handcrafted vulcanized rubber shell for total moisture defense. The removable 9mm recycled felt inner boot is topped with a Sherpa Pile snow cuff to trap heat and keep debris out. Built with a seam-sealed construction and a Sorel Aero-Trac non-loading outsole, they offer reliable traction and warmth for winter adventures or daily chores in the snow. Model: Caribou II NM1000-283 Type: Winter Pac Boots Color: Bruno / Black Material: Nubuck Leather, Rubber Lining: Removable 9mm Felt Cuff: Sherpa Pile Closure: Lace-up with D-rings Construction: Seam-sealed Waterproof Outsole: Aero-Trac Rubber Toe: Round, Rubber Shell Shaft Height: Mid-calf Style: Rugged / Outdoor Keywords: Winter, Snow, Waterproof, Insulated, Hunting, Outdoor, Rugged, Cold Weather, Pac Boots, Gorpcore, Workwear, Heavy Duty, Arctic, Sherpa Lining