Designed to bounce over rough terrain, the concept behind fat bikes gave life to Under Armour Fat Tire running shoes and their noticeably pronounced midsoles and outsoles. Michelin helps give you a more sure-footed run with the WildGripper outsole that performs through muddy and rocky surfaces. The cushioned underfoot feel and secure upper fit create an overall comfortable and trusted foot environment. Great for cold weather trail runs.Upper: UA Storm1 offers abrasion-resistance and lightweight flexibility. Padded heel collar and textile lining enhance comfort. Lace-up front offers an adjustable fit.Midsole: Charged Foam midsole is cushioned and responsive. OrthoLite® sockliner.Outsole: Michelin rubber compound WildGripper outsole provides excellent traction and protection against rough terrain.