On the heels of last week's unveiling of the adizero Prime Parley, adidas is expanding its usage of Parley Ocean Plastic for the first time to a running spike. The resulting Prime SP Parley features 360-degree Primeknit technology on the upper, fused together with a double layer of Parley knitted yarn -- made with recycled plastic waste -- to reduce stretch while enhancing support and breathability. Underneath, the sole uses a laser welded frame and smaller Nano-plate for reduced weight and elevation. 400m world record holder Wayde Van Niekerk is debuting the shoe at this year's IAAF World Championships.