Sorel Slimpack II Boots Womens Elk Black UPPER: Waterproof full-grain leather upper with wool felt collar. Seam-sealed waterproof construction. Microfleece lining. FOOTBED: Molded EVA footbed with arch support, microfleece topcover. MIDSOLE: Vulcanized rubber. OUTSOLE: Insulated waterproof vulcanized rubber shell with herringbone outsole and leather wrapped heel. Vulcanized rubber compound is improved for wet traction. Shaft Height: 6 2/7 in. Heel Height: 1 7/9 in. Platform Height: 1 3/8 in.