Merrell Tundra Waterproof Thinsulate Polartec Blue Gray Boots Womens Size 8.5 Pigskin Leather Synthetic sole Platform measures approximately .75" Waterproof Construction Slip Lasted Construction, Merrell Glacier Sole/Sticky Rubber Waterproof and stain Resistant Pigskin Leather Upper 200 grams of Thinsulate Insulation, Air Cushion Midsole 4.5mm Anatomical Footbed Q-Form Compression Molded EVA Footframe