Featuring an innovative Boost midsole and redesigned StretchWeb outsole, the Adidas Pure Boost X has the support and comfort you need for an enjoyable running experience. Boost midsole material is composed of thousands of energy capsules that deliver springy cushioning for out of this world energy return. The revolutionary midfoot construction allows the upper to move with the foot, improving the fit around the arch. The upper also contributes to this unmatched, sock-like fit thanks to a unique material that stretches with and supports your foot. These shoes feature an innovative lacing system that prevents pressure on the top of the foot by minimizing the number of lace holes. With these shoes, you’ll be able to maximize your performance and eliminate foot fatigue and irritation.