SIDI ST Air Boots


  • 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
4.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Keep your older ones until Sidi revamps
same basic boot as before w/successful design for protection. however, I think Sidi is starting to play around now in an attempt to make something new and different each year. e.g., the older style that used a velcroed closure flap over the zipper was far easier and better than the "monkey motion" buckles because, unlike the buckles, the velcro is just as secure, if not moreso, and it is infinitely adjustable for when you may want to close them over vs under a cuff, e.g. a track suit. the flap also adds water resistance over the zipper and the earlier boot never needed the stretch fabric either because it broke in quickly and zipped up and down just fine. the new ST leaves both the zipper and the stretch panel exposed to water ( if you want the perf model then of course it doesn't matter) finally, the buckles don't adjust-- instead you have to pop open and slide the plastic tab in and out on each side separately in order to readjust for over vs under cuff wear. so, as a street boot for occasional track days the ST isn't really much better than the Vortice or the older style corsas. For an additional $80 the Vortice is the better buy since the presumed "convenience" of the top buckles fails to live up to that promise.

PROS: Stable, Comfortable, Good Cushioning, Durable

CONS: Poor design upgrade, Older velcro closure best

March 24, 2011
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!
Product Style Item # Manufacturer Product # Availability
Black / 7.5/41 751191 2000000076775 Available: Requires 3-5 business days of lead time prior to shipment
Black / 8.5/42 751192 2000000075181 Out of Stock
Black / 9.5/43 751193 2000000076782 Out of Stock
Black / 10/44 751194 2000000076799 Out of Stock
Black / 11/45 751195 2000000076805 Out of Stock
Black / 11.5/46 751196 2000000076812 In Stock: Ships within 24 hours
Black / 12.5/47 751197 2000000076829 Only 3 Left: Ships within 24 hours
Black / 13/48 751198 2000000076836 Out of Stock