Reference: 377821 Running shoe technology meets winter performance in the e X ULTRA MID 2 SPIKES GTX®, with a supportive, cushioned midsole, precise fit and full GORE-TEX® bootie. It also has 9 carbide tipped spikes in the sole for sure grip on icy surfaces. Technologies outsole Non marking Winter Contagrip® 9 Carbide-Tipped metal spikes midsole injected EVA molded shank chassis Advanced Chassis™ membrane GORE-TEX® Performance Comfort Footwear protection Protective heel cap Protective rubber toe cap Mud guard sockliner EVA shaped footbed OrthoLite® upper construction Heel foam Women's specific design Fit management Sensifit™ Heel Strap upper material Water Resistant textile Waterproof PU coated leather Benefits Snow and Ice Traction Carbide tipped spikes inserted into the sole lugs ensure aggressive grip, even on ice. Weather protection Full GORE-TEX® bootie ensures breathable waterproof performance. Precise fit Sensifit and quicklace ensure precise, comfortable wrapping for any foot shape.