Sidi Kaos Shoes The anatomical & comfortable strap, placed on the top of the foot & coupled with a soft & thermo-formed material, will increase comfort & performance. It distributes pressure evenly over the arch area, adjustable from both sides to achieve the perfect center position. The system eliminates the need for the High Instep Extender. The Soft Instep Closure System is serviceable & replaceable Caliper Buckle The micrometric closure called ' Caliper buckle' is adjustable by lifting the central buckle. In order to completely open, lift together both side buckles, or push the center button to slightly loosen one tooth at the time. The system is also adjustable during a race. High Security Velcro High security Velcro straps with integrated locking polymer teeth, that engage onto each other when the strap is closed. This feature makes the closure more secure & the strap becomes unmoveable. Adjustable Heel Retention Device The adjustable heel retention device reinforces the top of the heel cup & improves the fit by closing the back of the shoe securely around the riders ankle. The heel retention device tightens the top of the heel cup so that it doesnt side-out during steep climbs or sprints. It can be adjusted with two small screws that work independently from each other. For a custom adjustment turn the screw towards the + sign to tighten the heel retention device & towards the
- sign to open it. Replaceable Heel Pad For walkability, Sidi cycling shoes include a replaceable polyurethane heel pad. Millennium 4 Carbon Composite Sole Techno 3 Buckle