From UGG®, the Men's Idyllwild Leather Lace Boots feature: Leather upper The Twin Seam detailing, metal eyelets, punched eyelets Non-wicking laces made with 100% recycled polyester fibers Textile lining (Textile lining made form 90% recycled polyester, 10% Spandex) 10mm UGGplush™ 60% upcycled wool, 40% TENCEL™ Lyocell sockliner Poured PU footbed incorporates at least 50% bio-based content The UGG® Logo, heat-embossed Spider Rubber® outsole for traction Imported.