The Nike Winter Lunar Edge 12 training shoe features a DWR coated, ripstop mesh upper that provides water repellence. Therma-Fit collar lining adds warmth. Synthetic overlays at the forefoot and heel offer support and stability. Ultra-lightweight Lunarlon cushioning system delivers soft, yet responsive shock absorption. Solid rubber outsole with aggressive, multi-surface traction pattern. Non-removable insole. Wt. 10.0 oz.