As with all fi'zi:k Women's shoes, the cut, sizing and styling are made specifically for female riders.
R5B Donna’s single Boa IP1-A closure control is light, fast, secure, aerodynamic and comfortable – and is complemented by one sail cloth strap.
The R5B Donna’s carbon reinforced Nylon outsole is stiff for power transfer and sculpted to aid aerodynamics. It combines with the proven supportive and comfortable fi’zi:k Cycling Insole with sculpted footbeds and supportive heel to ensure that every precious watt goes straight into your pedals.
The R5B Donna’s Microfiber upper is hard-wearing, light, and resilient with enough flexibility to ensure comfort for every woman rider’s foot, but strong enough to withstand the demands of racing – without any weight penalty. The diamond-shaped laser-cut perforations help temperature management and the reflective heel cap offers visibility on the road.