adidas Adizero Finesse Running Spikes Step confidently onto the starting blocks. The Finesse track spikes were designed with 200 and 400-metre races in mind. A celermesh upper hugs your foot for supportive comfort and the iconic 3-stripes make a bold statement. Celermesh Upper Providing your feet with a supportive, flexible hold, the spikes utilise a celermesh upper construction. These materials supply your feet with a constant level of airflow, ensuring a fresh, comfortable experience from the start to the end of your race. These track spikes are designed to deliver a quick and efficient ride for maximum speed with a second-skin fit for comfort and stability to ensure a distraction-free run. The shoes have a traditional lace closure, keeping your feet locked in and secure, therefore preventing the risks of in-shoe slippage and discomfort. Made with a series of recycled materials, this upper features at least 50% recycled content. This product represents just one of adidas' solutions to help end plastic waste. Six-Spike Forefoot Outsole The moulded outsole is extremely lightweight and helps to improve stability so that you can achieve maximum speed and performance. A six-spike forefoot enables you to grip that track for a seamless transfer and powerful push-offs. **You don't want to feel your toe cramped up against the front of the shoe. A spike should feel like it was meant for your foot, a little more snug than a training shoe feels so we would recommend half a size up on normal shoes**