Designed for trekking through damp, rugged terrain, the Karrimor Corrie keeps you dry with a waterproof, breathable Weathertite Xtreme (WTX) liner, delivers support with a durable nubuck and suede upper, and improves stability with a premium Dynagrip sole unit.. NOTE: This product is sold in U.S. sizes. While the physical product may display both the U.S. & U.K. sizes on it, please place your order using the U.S. size.. WTX waterproof / breathable liner. Nubuck and suede upper. Reinforced toe bumper. Removable anatomical insole. Dynagrip sole unit. Mesh inner lining. Synthetic outsole. Spot clean. Imported.