Description Featuring the most advanced Vibram outsole technology to date, Muck Arctic Ice Series Extreme Conditions Mid-Height: Rubber Men’s Winter Boots are specifically engineered to deliver grip and performance on wet ice. The Arctic Grip Outsole pods offer the most advanced traction in wet ice environments, and the multi-direction lug design provides sure footing on multi-surface terrain. The outsole of these men’s winter boots also features the Vibram Icetrek full base layer for unparalleled traction on dry ice. From a comfort perspective, the 5 mm CR Flex-Foam is flexible, 100% waterproof, and possesses excellent heat-retention properties. It combines with the fleece lining to ensure superior warmth and comfort rating. Tough Spandura and an extended rubber shaft round out the cold weather coverage of these waterproof winter boots. Specifications and Features: 5 mm CR Flex-Foam neoprene is 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to your foot’s contours to resist chafing Black & Gray color scheme matches any outdoor attire Boot Height: 13.47in Extended, soft rubber coverage; tough, flexible Spandura adds protection against wear; improved midsole for better support Multi-directional outsole lug design offers excellent traction on multi-surface terrain; rear pull loop for easy on/off Shaft Circumference: 17in Soft fleece lining enhances comfort, provides superior warmth, and is durable for long cold treks and comfort rated Vibram Arctic Grip outsole pods deliver the most advanced traction on wet ice; Vibram Icetrek full base layer provides the highest level of traction on dry ice WARNING This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov Shipping & Returns Reviews