Polyurethane (PU) Closure type Slip-on Water resistance level Water Resistant About this item • WINTER BOOT: Comfortable suede and studded shoe with a technical side, uses recycled materials and revolutionary gripping technology for your sustainable companion in cold weather activities • DURABLE & WARM: Perfect for active winter lifestyles, outsole provides traction on icy surfaces and secures footing on pavement, offering a solid grip no matter where your day takes you • STEEL STUDS: BUGrip features 16 dynamic carbide steel studs allow you to walk many miles on asphalt, snow, or ice for a more resilient walk, slip resistant • WATER RESISTANT: Anti-slip and water-resistant outsole, upper is made of water-repellent suede, easy slip-on side zipper • LOW WASTE: We prioritize lasting quality over temporary trends, champion low environmental impact and low waste, and diminish our carbon footprint