New Balance FuelCell Sigma SD-X: A High-Performance Track Spike

The Boxstock catalog proudly features the New Balance FuelCell Sigma SD-X 'White Black,' designed for optimal performance on the track.

Innovative Design and Technology

This shoe sports a classic dual-tone look perfect for races spanning 60m to 400m. The upper is crafted from a seamless white knit material, incorporating a traditional lace-up system alongside a snug, sock-like elastic collar. An oversized NB logo elegantly decorates the side of the forefoot for a stylish touch. The shoe's lightweight build is supported by a FuelCell foam midsole, integrating a full-length carbon fiber plate to enhance responsiveness during sprints. A black outsole with strategically placed pins ensures rapid acceleration and superior grip underfoot.