Shimano SH TR501 W Triathlon Shoes White Advance left right and rotationally Size:S (29") left right and rotationally The low weight and high lateral stiffness make this wheelset the ideal choice to secure your position at the top of every climb Integrated seamless midsole and upper construction set a new level of fit stability and lightweight performanceLow stack height midsole stabilizes foot and maximizes power transfer efficiencyT1 Quick strap and extra wide collar simplifies foot entry and quickens transitionsQuickly secure shoe during transitions with easy to grab asymmetrical heel loop3D breathable mesh improves airflow and dries quickerLightweight glass fiber reinforced nylon sole for power transferAdaptable cup insoleWomen's specific last for a natural