Introducing Helix the new standard in performance footwear. Bont Cycling’s race-proven anatomic fit is now even further enhanced by a newly reimagined closure system. Experience performance and comfort without compromise like never before.Key Features:DuroliteRetention SystemCable RoutingSingle BoaUnidirectional Carbon ChassisTPU Toe ProtectorVentilationAnti StretchCarbon FibreMemory Foam PaddingMedial Longitudinal Arch SupportAnatomical Forefoot ShapeAnatomical Heel CupLateral Forefoot SupportSpecifications:Material: Unidirectional Carbon Monocoque Chassis with Durolite upperStack Height: 3.6 mmAir Vents: Ventilation via air vents on front bumper and perforated upperInnersole: EVA thermo-moldableSole Guards: ReplaceablePadding: Memory FoamCleat Mounting: MM grid plus grip / 3 Hole Look ConfigurationFit Customization: Fully Heat Moldable Chassis utilizing Epoxy Thermoset ResinClosing Options: BOA IP1 Dual Dial Retention System with Kevlar wiringWeight: 260 grams (Size 46.5)Color Options: Metallic Blue/White Black/Gold Black/Black White/Charcoal Shiny Red/White