The Genius 6.6 Carbon Lite features Sidi's updated high-end carbon sole that is literally out of this world. For the first time in a cycling shoe, the Carbon Lite Sole introduces a proprietary aerospace material called Aeronet Lite. Constructed of advanced composite materials and engineered to maximize resistance to mechanical stress, the Carbon Lite Sole is ideal for the high-performance, high-mileage cyclist who requires a rigid sole with great power transfer that doesn't compromise the foot's blood circulation.

The adjustable Heel Security System reinforces the top of the heel cup and improves fit by more securely closing the back of the shoe around the top of your foot. The HSS adjusts 6mm on either side with the turn of a screw for a custom fit.

The upper is constructed of a breathable, supple and durable material called Lorica. The Caliper Buckle allows for easy adjustments while riding and two High Security Velcro straps won't shift or slip. The Genius 6.6 Carbon Lite is built with maximum performance in mind, but is also built to las

• New lightweight Carbon Lite Sole balances power transfer and foot health
• Heel Security System prevents power robbing heel lift
• Breathable, Supple, durable Lorica upper
• Caliper Buckle
• Soft Instep Closure System and padded tongue
• High Security Velcro straps
• Mesh inserts
• Reflective heel cup