· Upper in Lorica and nylon Mesh · Reflective accents on the upper · 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 · Red SL buckle Allows locking in two different ways: by taking up a number of clicks with one sweep of the lever, or engaging half click at a time for a truly micrometric adjustment. The two red flaps may be pressed together for complete unlocking or alternately to slightly loosen the shoe during performance · Fastener Security System High security straps with integrated locking polymer teeth , that engage onto each other when the strap is closed. This feature makes the closure more secure and the strap becomes unmoveable. · Heel The reinforced heel keeps the foot in position and avoids the shoe being deformed by extreme performance or prolonged pressure. · Millenium 2 sole Light and aerodynamic, Millennium 2 sole does not require the use of adaptors to fix the plates. Replaceable heel tab. All buckles and mechanisms are replaceable.