BOOST midsole cushioning combined with the Linear Energy Push System provides a stable, responsive ride. Continental Wintergrip rubber outsole provides exceptional traction on slick roads. Features - Ultraboost 22 C.RDY II Regular cut Laces Mesh upper Linear Energy Push System BOOST midsole Continental Wintergrip Technologies Boost - endless energy Boost is the revolutionary cushioning material from adidas. Boost has thousands of small visible energy capsules that are connected to form a midsole using a special process. The capsules endlessly store and release energy every time your foot hits the ground. The shoe retains its properties in the depths of winter as well as the height of summer, making it significantly more temperature resistant and durable than conventional materials. The innovation of adidas offers you comfort paired with dynamism: it will inspire you! Primegreen The dependence on newly produced polyester has given adidas food for thought for alternative solutions. Primegreen is one of them. Various functional recycled materials are used in the production of Primegreen products. This way, adidas offers you a more sustainable choice.