The adidas Ultraboost Light shoes will let you feel good, run faster, and beat your personal best. It's a sequence that keeps repeating itself. Boost your run with the Ultraboost Light running shoes. They're the lightest and most responsive Ultraboost to date and are built with a manufacturing process that generates a lower environmental footprint than previous versions. The Light BOOST midsole with next-generation adidas BOOST technology provides increased energy return with every stride.