Weather Rated to -32ºC Cold-weather styles with this icon are rated for temperatures as low as -32°C (-25.6°F). Waterproof Designed to help protect against heavy weather conditions, including water, rain, and snow. If present, zippers and tongues are gusseted and treated with water-repellent coatings. Sheepskin Lining Vetted through extensive, industry-leading processes to ensure only the highest quality sheepskin makes the cut, delivering the signature feeling of UGG. White Spider Rubber Made for high friction and durability, this versatile and non-marking rubber compound offers enhanced traction on wet and dry surfaces. Dry Tech Made with UGGS innovative DryTech membrane, which forms a waterproof barrier for enhanced protection from the elements.