Powerful. Aggressive. The New Balance Neon Emerald Green Vazee Sigma Unisex Track Spikes shoes are ideal for sprinters looking for a customizeable fit. A midfoot canopy and heel wrap help create synergy between the foot and spike thanks to a BOA® Fit System. An asymmetrical eight-spike plate provides traction with just the right amount of flexibility. The Vazee Sigma features a BOA® Fit System for a locked down fit, while a powerful 8-spike plate provides traction for distances up to 400m.