adidas Adizero Prime X 2.0 STRUNG Shoes in cobalt blue - zero metallic - lucid lemon.Built with innovative technology and designed without the constraints of world race regulations the Prime X 2 Strung offers more performance-driven features in a single race shoe. It's constructed with a STRUNG upper a textile innovation that transforms athlete data into a dynamic material tuned to the athlete's needs. Prime X 2 Strung also has 3 layers of LIGHTSTRIKE PRO in a stack height of 50mm. With an all-new energy core between two layers of foam it helps to reduce weight and provide spring in the fore- and midfoot so you can chase your fastest moment. An outsole featuring Continental compound delivers serious grip on a variety of surfaces.- The high-stacked race shoe packed with performance-driven features.- Regular fit- Lace closure- STRUNG upper- Textile lining- Lightstrike Pro cushioning- Weight: 308 grams (size UK 8.5)- Midsole drop: 7 mm (heel: 50 mm - forefoot: 43 mm)- Continental™ Rubber outsole- Upper contains a minimum of 50% recycled content- Ref: IF1209