On Cloudspike Amplius 2 - Womens socks An upgraded MaxTrac™ outsole offers

An upgraded MaxTrac™ outsole offers stickiness and grip underfoot while an Altra EGO™ midsole helps achieve the perfect combination of responsiveness and comfort

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On Cloudspike Amplius 2 - Womens socks An upgraded MaxTrac™ outsole offersYour long distance track spikes. A perfect combination of cushioning and energy return for races up to 10,000m. Key features Weight: 157. 3g Highly responsive Helion HF hyper foam midsole Massive energy return Lightweight one piece upper Five spikes For long distance track events Nylon blend Speedboard for midfoot stability World Athletics approved forefoot stack height below 20 mm Powered by Helion HF