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Sidi - ST Air Boots
The ST Air has a perforated Lorica outer for maximum air flow. Composite inner sole. Dual compound sole. External ankle brace system. Sidiâ€™s exclusive cam-lock buckle system for easy entry and boot removal while still offering a perfect glove like fit. Bolt on (no Velcro!) replaceable, adjustable and aerodynamic nylon scuff pads on the toe. Padded Achilles area. DuPont polymer toe shift pad. Lorica outer construction. Removable arch support. Double stitched in all high stress areas. Closable air vents on the foot outer. All bolt on parts are replaceable. An elastic panel adjacent to the entry zipper allow a bind free zip and improved fit. Perforated Teflon treated nylon lining. Replaceable, Shock absorbing heel cup. The ST can accommodate riders with up to an 15-inch calf diameter 12.5 inches above from the bottom of their heel.