Sidi Performer Black-WhiteSidi Performer Black White Upper in TECHNOMICRO microfibre Lined with air Teflon mesh and Cambrelle on the toe area Shaped and fixed shin plate with lower air channels Metatarsus external protection Internal and external shaped ankle pads Calf area exhaust in soft polyurethane protected with mesh Soft arch area Elastic panel adjacent to the closure on the calf area Smooth heel cup for more adherence with the bike. Shift pad Replaceable toe slider