What You'll LoveA lighter-weight upperResponsive and protective rideDurable and grippy Continental rubber outsoleThe adidas Adizero Boston 11 is a versatile performance trainer. The midsole is a combination of LightStrike and LightStrike Pro foams that creates a responsive ride with exceptional durability. Sandwiched between the foams are adidas' Energy Rods. These plastic rods run the length of the shoe and help create a snappy toe-off with increased stability. A Continental rubber outsole ensures that the Boston 11 has superior grip and longevity. The biggest update to the Boston 11 comes in the revamped upper. The fit is improved to enhance comfort, while lighter weight overlays and a thinner mesh amplify the race-ready feeling. With these updates, the Boston 11 continues to be a highly responsive and protective daily trainer ready for any day of the week.