Direct Attach Premium waterproof leather with seam-sealed direct-inject construction 400 grams of Thermolite insulation Padded collar provides comfort and prevents debris from entering Mesh lining with antimicrobial treatment for odor control Contoured nylon shock-diffusion plate for support Lightweight blown-thermal plastic midsole for flexibility Open-cell polyurethane footbed with antimicrobial treatment for breathable comfort and odor control Timberland PRO oil-resistant, non-marking rubber lug outsole for durable traction Single boot weight for size 9: 966 grams/2.13 pounds Imported