Explode off the starting line in the Nike® Ja Fly III track and field cleat. A woven upper, Phylon midsole and 8-pin Pebax® spike plate provide you with an elite level cleat experience for enhanced performance. DESIGN: Woven upper construction increases flexibility and support for a lightweight fit Seamless toe tip offers added comfort in the starting blocks Asymmetrical lacing locks down the foot and relieves pressure over the top of the foot IN-SHOE COMFORT: Phylon midsole wedge helps provide cushioning, comfort and a smooth transition TRACTION & DURABILITY: Injected Pebax® spike plate uses an algorithm to identify where zones of stiffness and flexibility are needed 8-removable stainless steel pins enhance traction and increase speed during races Additional Details Designed for 100m - 400m and Hurdle events 1/4" pyramid spikes and a spike wrench Weight: 5.2oz (size 9M – 10.5W) Last:X2209 Offset: 0 Innovative spike plate is 2.75 times as stiff as its predecessor