The Nike Zoom Forever XC offers the ultimate blend of classic waffle traction and replaceable spikes for racing on all surfaces. The upper features a unique two layer mesh system that reinforces the forefoot for appropriate support and an internal midfoot support for great lace lockdown. The Outsole has a two piece spike plate, 4 receptacle pattern provides great traction in all conditions. Tip to heel injected rubber/TPU blend provides great claw like traction in the classic waffle tradition.