If you want to switch off during running training, you need the right running shoes. These shoes have a low shaft and a round toe as well as lacing, which allows the shoe width to be individually adjusted to the foot. Boost technology is cushioning made up of many small air cushions, and as a result, the foot is gently cushioned when running and the rollover feels smooth. The rubber outsole is non-slip due to the good traction, and the synthetic upper is durable and easy to care for. Brand: adidas Performance. Lace-up. Boost technology bounces with every step. This functional companion relieves the feet while running. BOOSTTM cushioning technologies. Upper: Synthetic Textile. Sole: Rubber. Please make sure that you try your footwear on before returning, as the box or label may state a US/Euro size which is different to the UK size. Runs small, please order one size larger.