Impact resistant foam columns compress progressively under different loads

These track spikes are built to maximize propulsion and efficiency for middle to long-distance track races.

Features

• FuelCell foam delivers a propulsive feel to help drive you forward
• Carbon fiber plate with removable spike pins
• Lightweight airy mesh upper with bold sublimation details
• 175.2 grams (6.2 oz)

Material

• Lightweight synthetic material

• Men??s 4 = Women??s 5.5
• Men??s 4.5 = Women??s 6
• Men??s 5 = Women??s 6.5
• Men??s 5.5 = Women??s 7
• Men??s 6 = Women??s 7.5
• Men??s 6.5 = Women??s 8
• Men??s 7 = Women??s 8.5
• Men??s 7.5 = Women??s 9
• Men??s 8 = Women??s 9.5
• Men??s 8.5 = Women??s 10
• Men??s 9 = Women??s 10.5
• Men??s 9.5 = Women??s 11
• Men??s 10 = Women??s 11.5
• Men??s 10.5 = Women??s 12
• Men??s 11 = Women??s 12.5
• Men??s 11.5 = Women??s 13

Angled collar padding reduces pressure on Achilles tendon