From your first run to the finish line of that 10K, the Solarboost 4 feels responsive mile after mile and day after day. These adidas running shoes are built on full-length BOOST with a control rail that guides the foot with each stride. Throw in the Linear Energy Push system, and you get a snappy ride that takes you from training to race day. Product Highlights: - adidas BOOST delivers incredible energy return and instant comfort with each step to keep you going. - The mesh upper provides ventilation in the forefoot and lower midfoot with extra lockdown where you need the support. - Composition: Upper: textile, synthetics. Insole: textile. Outsole: rubber. - Care: Refer to product label.