NEVER WORN The latest edition of our legendary Slimpack, this boot has a premium wool felt collar, soft microfleece lining, and rain-defying DNA. The waterproof full-grain leather and seam-sealed construction help you take on the storms while the EVA footbed and 100g of insulation keep you warm and comfortable all day. MIDSOLE: Vulcanized rubber. UPPER: Available in waterproof full-grain leather upper or waterproof nubuck upper with wool felt collar. Microfleece lining. Seam-sealed waterproof construction. INSULATION: 100g insulation. FOOTBED: Molded EVA footbed with arch support, microfleece topcover. OUTSOLE: Insulated waterproof vulcanized rubber shell with herringbone outsole and leather wrapped heel. Vulcanized rubber compound is improved for wet traction.