R5B Donna: The highly accessible R5B Donna offers a carefully crafted blend of comfort and light weight, fit, power transfer and aerodynamic efficiency. 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.
• R5B Donna weighs just 215g (size 38.5).