The Adidas Ultraboost 19 Shoe delivers comfort and energy return to re-energize your road runs. The lightweight and seamless uppers stretch to comfortably accommodate your foot while keeping in place as you run. Additionally, the Ultraboost is outfitted with Adidas's most responsive midsole. Boost delivers high energy return while a Torsion Spring in the midsole provides you with support during landing while providing propulsion at the toe-off. The flexible Stretchweb outsoles enhance the energy return provided by the midsole by flexing naturally through each stride. Finally, the Continental Rubber soles ensure you have reliable traction throughout your run.