-External ankle brace system.
-Composite inner sole.
-Dual compound sole.
-Sidi'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.
-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
-DuPont polymer toe shift pad.
-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.
-Padded Achilles area.