UGG Classic Ultra Mini Weather Hybrid is a weather-ready mini boot that pairs waterproof suede and sealed-seam construction with 17 mm UGGplush™ warmth. Designed for light to moderate rain and light snow, it delivers traction and insulation down to −20 °C. Key attributes: Green | Suede leather | Waterproof — sealed seam construction and waterproof suede leather | Certified for temperatures down to −20 °C | Spider Rubber® inserts for improved traction | Lightweight EVA sole | Elasticated lace with eyelet (45% polyester, 55% latex) | Fixed foam insole | UGGplush™ lining and insole (17 mm) for insulation | Mini/short shaft boot silhouette | UGG® logo on heel | Eyelet detail with elasticated lace | Composition care: Waterproof suede leather | Elasticated lace: 45% polyester, 55% latex | UGGplush™ lining (17 mm): 60% regenerated wool, 40% TENCEL™ lyocell; backing: 100% polyester | UGGplush™ insole (17 mm): 60% regenerated wool, 40% TENCEL™ lyocell | PU insole (made with at least 50% bio-based materials) | Spider Rubber® inserts | EVA sole (made from sugar cane) | Fixed foam insole.UGGs feel snug at first, but the lining expands with wear. We recommend your usual size.