Waterproof Features with Seam-sealed construction Waterproof leather and Gusseted tongue with water repellent coating 8mm fluffy poly knit fabric lining on quarter, 8mm fluffy poly knit fabric lining on vamp, 10mm UGGplush 80% upcycled wool, 20% lyocell lining or 10mm UGGplush 60% upcycled wool, 40% lyocell lining EVA midsole and rubber outsole Cold-weather rated to -20 ̊C. Color: black