New Balance Unisex SuperComp SD-X Size:9 ADJUSTABLE STRAP: Give your straps

ADJUSTABLE STRAP: Give your straps a slight tug for one-way stretching

Traditional lace closure

delivering the most resiliency and softness

Non-Slip Material

oil and soap for slip-resistance

New Balance Unisex SuperComp SD-X Size:9 ADJUSTABLE STRAP: Give your strapsWhy You'll Love It: The SD X is one of the most propulsive sprint spikes we've ever carried, with its high rebound FuelCell midsole and carbon fiber plate Category: Sprinting track spike Weight: 5. 3oz Featuring a carbon fiber plate with built in pins for rigidity and traction, the FuelCell SuperComp SD X will be your go to competition spike for sprinting. Designed to meet the needs of elite athletes, this track spike has a lightweight, high rebound