RP5 Series affordable high-performance road endurance shoe for the aspiring rider. FEATURES. Seamless one-piece upper for ideal fit and all-day comfort. Light carbon fiber reinforced nylon sole for power transfer. Micro-adjustable Boa L6 dial with hidden wire routing. Clean design delivers pure, functional performance. Durable, wide heel pads provide walking stability. Optimum linkage of air flow over upper, insole and outsole. Best Match: PD-5800. Color: Black. Size: 44