Sidi Kaos Air Carbon Shoe
* Caliper Buckle two-way ratchet for easy on-bike adjustment with incremental tightening and loosening.
* Soft Instep 2 Closure System distributes pressure along the instep. Soft Instep Closure is replaceable
* Techno-3 System
* Synthetic upper is water repellent, quick-drying, breathable, permeable to water vapor and abrasion and mildew resistant.
* Sidi Heel Cup stabilizes and supports the heel to reduce heel slip and increase power transfer
* Millennium 4 Carbon Composite Sole features injected carbon fiber in a matrix of Nylon, providing more rigidity than a standard nylon sole.
The stiff Milennium 4 Carbon Composite sole in the SIDI Kaos Air Carbon cycling shoes provides you, the rider, with a surface where no leg power is lost from cycling shoe to pedal. While the stiff sole enhances performance, the toe area of the sole has enough flexion to allow circulation. Your feet do not cramp on short power rides or on long endurance rides. The flexion also relieves any unnecessary stress on your plantar tendon. In the Koas Air Carbon, performance does not compromise comfort. Fit is perfected through a series of features. The Caliper Buckle at the top and the two wire dials secure your foot into the shoe. The wire buckles that cross the forefoot and the toe can be incrementally tightened or loosened one ratchet at a time as you are riding your bike. The new SIDI Wire material is very low friction, making it easy to adjust. The wire buckles maximize comfort and power transfer efficiency as they evenly distribute pressure across the closure. The Caliper Buckle is another adjustment features that secures your foot into the shoe and allows you to find the perfect fit. Flip the lever up to tighten, and flip it down to lock your foot in place. The perfect fit is extended with the Soft Instep 2 Closure System that can be adjusted from both sides so the EVA pad is centered over the high and low instep. Power transfer is further increased at the heel area that is kept from slipping by the SIDI Heel Cup. The strong heel stays in good form even after heavy duty usage thanks to the Heel Cup. The synthetic upper doesn