Feel good, run fast, do better. It's a cycle. Add bounce to your run with the Ultraboost Light running shoes. The lightest and most responsive Ultraboosts yet, they're also made with a lower footprint than previous versions. The magic lies in the Light BOOST midsole, a new generation of adidas BOOST with even more energy return. That means you'll feel more energized across the miles, no matter the pace or distance.