The Race Road II featrues Direct-Vent technology to provide cooling and drainage.1:1 Power Plate: SELECT Grade Nylon and Composite Fiber plate for lightweight stiffness and durability1:1 Anatomic Buckle Closure follows the natural anatomic shape of the foot to eliminate hot spots and remove pressure from instepSELECT Insole provides excellent Longitudinal and Transverse Arch SupportDirect-Vent technology provides cooling and drainageEVA foam and Rubber heel bumper gives stability and walking comfortConcave shaping for ultra low 7mm stack height, enhanced plate stiffness and anatomic support; and built in Longitudinal Arch Support for optimal support, power, and efficiencyAdjustable buckle mounting plate delivers ultimate fit and flexibilityHeel Cup features an integrated Molded Power Band for benchmark heel hold and power transferWeight: 270g (based on size 40)Vegan friendly synthetic leather and meshItem SpecificationsColorBlackShoe Size44.5GenderMen"sShoe WidthStandardCleat Bolt PatternLook,SPD-SL