The latest Boost sneaker by Y3 is the adidas Y-3 Retro Boost “Roundel Blue”. Adding on to the Adidas Y3 Boost line is the latest colorway featuring a Roundel Blue tone on the uppers. The upper consists of suede, leathers and synthetic panels displaying Blue. Other details include the stripes on the toe box and white boost midsole. You can scoop up a pair now at Adidas Y3 retailers across the globe.