Soft Instep closure system
The rigid polyurethane part has been reduced and coupled to soft, thermo-formed Eva and it is anatomical. The system eliminates the need for the High Instep Extender.

Increased comfort and performance through the SL buckle -  allows locking in two different ways: by taking up a number of clicks with one sweep of the lever, or engaging one half a click at a time for a truly micrometric adjustment.

The two red may be pressed together for complete unlocking or alternately to slightly loosen the shoe during performance
Velcro Security Closure System with integrated locking polymer teeth, that engage onto each other when the strap is closed.
This feature makes the closure more secure and the Velcro becomes unmoveable.