Upper made with premium leather from a tannery rated Silver by the Leather Working Group for environmental responsibility 400 grams of PrimaLoft® insulation for warmth without bulk and compressibility that mimics down Waterproof seam-sealed construction helps keep feet dry 100% nylon laces for lightweight durability Waterproof seam-sealed construction helps keep feet dry Padded collar for all-day, ankle-friendly comfort Additional set of laces Leather lining for lasting, natural comfort 3/4-length, leather-lined anti-fatigue molded footbed features shock-absorption technology Rubber lug outsole for traction and durability Imported