Bont Zero+ Li2 Cycling Shoes: Aerodynamics and Superior Performance The Bont Zero+ Li2 are high-performance cycling shoes designed to maximize aerodynamic efficiency and power transfer. Ideal for time trialists, long-distance triathletes, and cyclists looking to optimize every pedal stroke, these shoes combine advanced technology with an anatomical design based on over 20,000 foot scans, ensuring a precise and comfortable fit. Sole Material: 100% monocoque carbon chassis with unidirectional carbon fiber. Upper Material: Durolite, backed by an embedded anti-stretch fabric for consistency in fit throughout the life of the shoes. Closure Type: BOA® Li2 Performance Fit adjustment system with aerodynamic cover. Ventilation: Front vents and perforations on the forefoot for breathability in all weather conditions. Sole Height: 3.6 mm for greater stability and injury prevention. Cleat Compatibility: Standard 3-hole configuration for road pedals, with the option for a 4-hole Speedplay sole through the MyBonts custom platform. Weight: Approximately 230 grams.