UGG OLIVERT NAVY WATERPROOF LEATHER/ SNOW HIKER BOOTS, US 11 。UGG Olivert waterproof leather hiker boots. Men’s winter boots designed for harsh weather, with a cold-weather rating of -20°C (-4°F). Materials: Waterproof full-grain leather, wool collar, and seam-sealed construction.Insulation: Features 200g Thinsulate™ insulation and Polartec® Power Grid™ fleece lining.Outsole: Utilizes Treadlite by UGG™ with Spider Rubber pods for high friction and grip on wet or icy surfaces. These are preowned in good/fair condition with no structural flaws just a few signs of wear and tear Please review all photos. The size tag is missing , these measure at 12 inches in length- (a men’s size 12) Please see measurements for sizing. I would go on the side of 12 1/2 sizing just so that they are not too small Ships quickly from non-smoking home. Feel free to ask any questions.