The patented Vertebra System adds support, plus each joint moves independently.

• Patented, highly-articulated "Vertebra System" is the chief support structure of the boot.
• Each joint moves independently
• The system shields the back of your leg, ankle joints and heel.
• Replaceable "pavement pads" include pads for toe and and upper-boot area.
• Integrated-articulated plastic rear protection panel shields the back part of the leg from impact.
• Exclusive bolt on (no Velcro!) replaceable, adjustable and aero dynamic nylon skid pads on the toe, ankle ball and calf.
• Heel cup molded of two different density of plastics to allow improved sliding on the track while not taking away from rider protection qualities.
• Gear change pad molded of Dupont Techno-polymers which ensures that it's qualities will not change in high or low temperatures.
• Dual compound sole for maximum comfort and safety.
• Steel inner shank in the arch area.

Lorica is a composite microfiber material created from a strands that are so fine, each one is less than one thousandth the thickness of silk. When injected with special resins, these fibers act like natural leather skin, but with the addition of better strength, softer texture, lighter weight and better moisture protection. Lorica is also highly resistant to abrasion--yet it still breathes, with more than three million pores per square centimeter. Eash to maintain, Lorica doesn't stain and can't be scratched. Like natural leather, Lorica reathes to keep you comfortable. It's also water-repellent, doesn't stain, can't be scratched and actually improves with age!