Nike Zoom JA Fly 4 CRS During the race

During the race

All-Terrain Versatility: Performs equally well on trails

Outsole: Zig-zag patterned sole for multi-directional grip and flexibility

On longer sessions or races

Engineered for the unique demands of the steeplechase

Nike Zoom JA Fly 4 CRS During the racePlease note mens US7 = 7Y and so on. Sizes run small, we recommend ordering 1 2 to one full size up. Please check the size guide here. A lightweight shoe featuring a full length spike plate designed for sprinting. Nike Ja Fly 4 Sprint Spikes: Redefining Speed with Lightweight Innovation Engineered for the worlds fastest athletes, the Nike Ja Fly 4 sprint spike embodies the latest in sprint technology, combining lightweight materials, precision