Kamik Nationpro - Men's Waterproof Boots : Black : Face the winter season with the tough yet comfortable style of the Nationpro boot from Kamik! ; Temperature rated: -40°F/-40°C. ; Waterproof recycled leather upper. ; Seam-sealed construction keeps out the wet elements. ; Waterproof and flexible synthetic rubber shell. ; Rustproof speed lacing system for easy entry and exit. ; Padded collar and waterproof gusset tongue offer added comfort and also guards against water and debris from entering the boot. ; Removable 200B Thinsulate foam liner for lightweight protection and warmth. ; Moisture-wicking lining provides a breathable foot environment. ; Cushioned footbed provides all-day comfort. ; SNOWTREAD Synthetic Rubber outsole provides excellent grip and traction on wet, snowy surfaces. ; Leather sourced from a tannery that achieved a Gold Rating from the Leather Working Group (LWG). ; Imported. Measurements: ; Weight: 1 lb 14 oz ; Shaft: 10 1 2 in ; Product measurements were taken using size 12, width D - Medium. Please note that measurements may vary by size. | Kamik Nationpro Men's Waterproof Boots Black : 10 D - Medium, Leather