BOOST turns 10! After a decade of energizing runners around the world, we are stepping out with an even lighter shoe — the Ultraboost Light. Experience epic energy with the new Ultraboost Light, our lightest Ultraboost ever. The magic lies in the Light BOOST midsole, a new generation of adidas BOOST. Its unique molecule design achieves the lightest BOOST foam to date and boasts a 10% lower carbon footprint than previous models (for more information see FAQs below). To celebrate 10 years of BOOST, this special shoe goes back to the first ever BOOST colorway.