Details: Shimano’s S-PHYRE TR903 sets a new standard for comfort, power transfer, efficiency, and transition speed. Designed for sprint and Olympic distance triathlon races, the TR903 shoes feature a single wide closure strap that minimizes time in T1, which is critical for short course triathlon where transition speed is key. While built for short course racing, the TR903 shoes are a top pick for any triathlete and any distance triathlon where you want to focus on speed through the transition zones. • The first multi-sport cycling shoe to earn Shimano’s top tier S-PHYRE designation, the TR903 are the ultimate choice for speedy transitions and peak pedaling performance• Race-Tuned Closure System: Micro-adjustable BOA Li2 dial paired with fast-drying T1 Quick Strap deliver a truly precise fit with no energy wasting fore/aft or up/down foot movement• Cool and Dry: Water-resistant synthetic microfiber upper utilizes variable size perforation holes and a pair of mesh panels over the forefoot to boost ventilation and promote quick drying• Power Transfer: Stiff carbon sole and low stack height midsole that places your foot closer to the pedal axle combine to deliver efficient pedaling performance• Engineered Support: Supportive heel stabilizer cradles foot in optimal power producing position