From track runs to errand runs. experience a spring in your step with these Ultraboost running shoes from adidas. Made with our lightest BOOST cushioning ever. they give back energy with every stride. Combined with the Torsion System for heel-to-toe stability. they deliver a smooth. comfortable ride you have to feel to believe.All life cycle stages have been considered in our product carbon footprint calculation methodology and are based on the adidas' prototype size. From raw material extraction. processing. production & assembly. packaging. transportation. use and through to the end of the product's life. we measured the carbon footprint (CO2e). This conforms to the internationally recognised standard: ISO 14067.