This product is part of adidas' commitment against plastic waste: it is made with various recycled materials and has an upper with at least 50% recycled content. Features - Pureboost 23 Running Shoe Regular fit Laces Custom woven mesh upper material Responsive cushioning Textile lining BOOST midsole Offset: 10 mm (rearfoot height: 22 mm / forefoot height: 12 mm) Technology 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 much more temperature resistant and durable than conventional materials. The innovation from adidas offers you comfort paired with dynamics: it will inspire you!