The upper is made with premium coated waterproof Helcor® leather from a Silver-rated tannery. 4 grams of PrimaLoft® insulation. Seam-sealed construction. Padded collar and secondary lace. 1% nylon laces. Leather lining. 3/4-length, leather-lined anti-fatigue footbed. Rubber lug outsole. Upper - Leather, Lining and Sock - Textile, Sole - Other Materials.