Original style and design optimizes comfort and delivers pure pedaling performance. Upper: Innovative "Surround" upper pattern provides perfect balance of holding power and absolute all-day comfort. Supple stretch-resistant synthetic leathers. Adaptable mechanical closure system adjusts to various instep height and shapes. Open mesh for optimal breathability. INSOLE: Dual density cup insole for heel bone stability. LAST: Shimano Dynalast provides a precise fit and improves pedaling efficiency. SOLE: Lightweight carbon fiber composite sole with adjustable cleat mount. Available in half sizes and wide type. Best matched with PD-6800.