The Nitrogen gives ladies extra security with Serfas' proprietary buckling system. Buckle up with the smooth riding Nitrogen Road Shoe. Serfas' proprietary buckle system features a sewn in buckle paddle with integrated buckle protection. While other brands might skimp on the finer details of their shoes, Serfas utilizes the same high-end microfiber on the straps that makes up the shoe. Nitrogen is built with a women's specific design that feature smaller straps. 

• Sewn in buckle pad/integrated buckle protection
• Same high-end microfiber shoe material is features on its straps
• Offset Strap System provides a more comfortable wrap of the foot
• Triple Density Sold with increased stiffness - Stiffness rating of 8
• Triple Compound Insole allows for more flex from the footbed to the upper leather
• Integrated Reinforced Heel Counter to hold heel down
• SPD Compatible Sole - Time, Speedplay, Look
• High Efficiency Ventilation
• Wide Toe Box

Shipping Note: Shipping to Alaska, Hawaii, and APO addresses is not available for this item

Warranty: 1 Year Sergas