Nike Zoom Ja Fly 3 Track & Field Sprinting Spikes FEATHERWEIGHT AGGRESSION. The Nike Zoom Ja Fly 3 returns to the lanes with a fine-tuned, featherlight feel specifically designed for sprinters. Updated with a stiffer plate and a new woven upper, the no-sew tip and asymmetrical tongue highlight the modernized design.
Woven upper construction increases flexibility and support. Asymmetrical tongue wraps the foot for a contoured fit. Seamless toe tip for comfort in the starting blocks. Heel counter sits low on the foot and works with a flexible, lightweight collar to reduce pressure on the achilles tendon. Injected Pebax spike plate has a generative design that uses an algorithm to identify where zones of stiffness and flexibility are needed. It has a honeycomb-inspired pattern. 8 removable spike pins made of stainless steel deliver optimal grip.