Designed for elite sprinters, our FuelCell Sigma SD-X includes groundbreaking features to help you feel faster. These unisex racing spikes have a FuelCell midsole that offers a high-rebound feel, designed to promote energy return for sprint distance racing. The full-length Carbon Fiber Plate offers a stiff and responsive underfoot feel with built-in pins for lightweight but powerful traction. Plus, the no-sew construction delivers a sleek fit that helps you feel fast on your feet.
Carbon Fiber Plate provides a stiff and responsive underfoot feel with built-in pins for lightweight but powerful traction
FuelCell foam delivers a propulsive feel to help drive you forward
Lace-up closure for a secure fit
Spikes designed for 60m to 400m races
Synthetic and mesh upper for a lightweight feel
Upper features no-sew construction for a sleek fit and feel