Track shoes/Spikes Nike ZOOM JA FLY 3 - Top4Running.com。Explode off the line in the Ja Fly III. A woven upper with asymmetrical tongue and seamless toe tip delivers unmatched flexibility, support and comfort with every wear, while a low profile Phylon midsole offers lightweight padding and smooth transition. The Nike Ja Fly 3 track and field cleat has an injected Pebax spike plate Features: Ideal for Sprinting event Woven upper construction improves flexibility, support and breathability while an asymmetrical tongue wraps your feet for a contoured fit Seamless toe tip offers added comfort when in the starting blocks Heel counter and flexible lightweight collar work together to reduce pressure on your Achilles Lightweight Phylon midsole delivers maximum cushioning during foot strike and a smooth transition Honeycomb patterned injected Pebax spike plate uses an algorithm to identify where zones of stiffness and flexibility are needed Does not come with spike or wrench Smoke Free Pet Free Odor Free Does not come with spikes or wrench