Identical in design to the Vortice the Vernices Lorica Micro fiber with Vernice treatment gives the boots a high gloss shiny finish by application of a polymer blend. Theyre long lasting and great looking A Sidi Vortice boot in Vernice material cant be missed on the track Used by Josh Herrin in his four season ending race wins in the 2009 AMA Daytona Sportbike series. *The all new two piece Vortice sole is constructed of a polyurethane and rubber blend. It features a removable insert in front of the arch area where much wear and tear normally occurs due to sharp metal brake pedals and shift levers. Another patented exclusive Sidi feature* Composite inner sole.