Shimano SH TR501 Triathlon Shoes White Size:EU 50 heat treated aluminum construction with ultra strong PSI SRAMSALE heat treated aluminum construction with ultra strong one piece welded upper rail Cool and Dry: water resistant synthetic microfiber upper uses variable size perforation holes and mesh panels over the forefoot to boost ventilation and promote quick drying and lightweight performanceLow stack height midsole stabilizes the foot and maximizes power transfer efficiencyT1 Quick strap and extra wide collar simplify foot entry and quicken transitionsQuickly secure the shoe during transitions with an easy to grab asymmetrical heel loop3D breathable mesh improves airflow and dries quicklyLightweight glass fiber reinforced nylon sole enhances power transferAdaptable cup insole provides personalized comfort Shimano Sh Tr501 Triathlon Shoes White