Sidi ST Air Street Racing Boots Black/Black

Patented and trademarked Sidi Vertebra System protects the achilles tendon
Thermoplastic resin ankle protection
Replaceable to sliders
Composite inner sole
Removable arch support
Nylon shin deflector plate
Perforated Lorica outer construction
Double stitched in all high stress areas
All bolt on parts are replaceable
An elastic panel adjacent to the entry zipper allows a bind free zip and improved fit
Dual compound sole
DuPont polymer toe shift pad
Perforated Teflon treated nylon lining
Replaceable shock absorbing heel cup
Padded achilles area
External ankle support braces with closable air vents
Cam-lock buckle system