Textile and Synthetic Synthetic sole Lace closure Supportive adidas Primeknit 360 Comfortable textile lining; Stretchweb outsole flexes naturally for an energised ride, and Continental Rubber gives you superior traction Responsive Boost midsole; Stabilizing Torsion Spring Lightweight and adaptive Running reinvented. These high-performance neutral running shoes deliver unrivaled comfort and energy return. The lightweight and propulsive shoes have a seamless knit upper that's engineered with motion weave technology to provide stretch while also holding your foot in place as you run. The second-skin fit follows the shape of your foot to reduce pressure points.