The Imperial\'s Synchwire upper features BOA® IP1 dials and soft lace guides, which allow you to adjust your fit on the fly while reaping the benefits of the shoes light weight. Thermal-welded Teijin® TPU adds structural support exactly where it\'s needed, and a high-modulus Easton® EC90 SLX2 carbon fiber plate provides ultimate stiffness-to-weight for power transfer. Our adjustable Super Natural Fit footbed system is the final touch, allowing you to customize arch support right out of the box for luxurious comfort and optimal pedaling efficiency.