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SIDI ST Air Boots
The SIDI ST Boot features a hinged external support structure for helping to prevent lateral ankle movement while allowing for smooth fore and aft transitions on the bike. A set it and forget it cam lock closure system on the calf enables easy entry and accommodates a wide variety of calf diameters. All bolt-on components are replaceable.
- 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
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style Black / 7.5/41||RevZilla Item #751191||MFR. Product #2000000076775||AvailabilityAvailable: Requires 2-3 business days of lead time prior to shipment|
|Product Style Black / 8.5/42||RevZilla Item #751192||MFR. Product #2000000075181||AvailabilityIn Stock: Ships within 24 hours|
|Product Style Black / 9.5/43||RevZilla Item #751193||MFR. Product #2000000076782||AvailabilityOnly 1 Left: Ships within 24 hours|
|Product Style Black / 10/44||RevZilla Item #751194||MFR. Product #2000000076799||AvailabilityIn Stock: Ships within 24 hours|
|Product Style Black / 11/45||RevZilla Item #751195||MFR. Product #2000000076805||AvailabilityOut of Stock|
|Product Style Black / 11.5/46||RevZilla Item #751196||MFR. Product #2000000076812||AvailabilityAvailable: Requires 2-3 business days of lead time prior to shipment|
|Product Style Black / 12.5/47||RevZilla Item #751197||MFR. Product #2000000076829||AvailabilityOut of Stock|
|Product Style Black / 13/48||RevZilla Item #751198||MFR. Product #2000000076836||AvailabilityAvailable: Requires 2-3 business days of lead time prior to shipment|
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Reviews & Questions
Firstly, they flow a ridiculous amount of air. The level of airflow would lead one to believe they forgot to put on the boots at all. It's really quite amazing. They flow as much as air as a mesh running shoe, if not more.
They are, without a doubt, an excellent boot when it comes to ankle, foot and heel protection. I have put the toe sliders to use no less than a half dozen times on each boot and they're still in pretty good shape. I'd anticipate having to replace them, depending on how you ride, every 40-50ish times you get a toe down for a prolonged period. I'm not talking about brushing the toe on the pavement, I'm talking about your toe is on the pavement for the better part of the turn. Either way, just tuck that toe in a little bit once you've touched and they'll last you longer.
Comfort wise, these boots are superb. I am a size 10.5 in an Adidas, Asics, etc, and a 43/44 in a dress shoe. I initially ordered the 44 expecting them to fit like all Sidi boots. The 44 was a problem for be because my foot was sliding around, I didn't have a good sense for where the heel, toe and shifter were while under way. Not good. I sent them back for a 43. In the 43, I can feel my toe hitting the front of the boot when I'm walking off the bike. However, once on the bike I have absolutely zero discomfort and no longer notice my toe hitting the front. So much so, in fact, that I honestly can't recall if my toe touches the front or not when my foot is on the pegs.
These boots are not meant to be walked around in. I leave a pair of shoes at my desk in the office or bring a pair with me in my tailbag so that's not such a bad deal. The only thing that really irks me about these boots is that they squeak and squeak a lot. The squeaking noise comes from the joint where the Achilles protector pivots. If you leave the boots unclipped while walking around, the squeaking will cease. I haven't tried lubricating the joint yet, that's my next step. FWIW, the squeaking has gradually gotten worse, not better.
Overall, these boots are amazing. If you require almost-race levels of protection and astounding airflow, look no further. They're pricey, sure, but what's your ankle worth to you? They're comfortable, too, but don't expect to wear them around when off the bike and be perfectly comfortable.
Also, I commute in these boots as well as wear them for track days. They're sexy but also quite wide at the top. If your jeans aren't baggy or aren't a rather wide boot cut, you will end up having to tuck the jean which, in my opinion, looks MUCH better with these boots thanks to the protruding heel.
So, the wife bought me the SIDI STs for my birthday. I have not put any track time on them but they fit great and feel glorious. I am sure I will cut 5-6 seconds off my lap times with these.
Yeah I like SIDI boots, others don't. Find what you like and ride. I recommend SIDIs and Revzilla!
Between sessions I found them easy to walk around in when unfastened, but once you lock the fasteners for your next round of laps, you can feel that the boot isn't going to go anywhere in the event of a get-off. The 44 fits a US size 10 1/2 like a glove. If you're thinking about it, just pull the trigger and get a pair. You won't regret it.
The boots are very easy to get in and out. Though will need a bit breaking in. The feel is awesome and will definitely recommend the boot. Have the air version and the amount of air it circulates will make you easy and not sweaty on the bike.
Sizing is spot on and 43 as adviced by Revzilla fits me perfectly.
The only downside or as i should clarify there is bit of squeaking from the exoskeleton when i walk. Maybe due to boot being brand new.
Otherwise simply perfect.
1 year ago
over 2 years ago
I chose these to get what appears to be superior protection, but I got some other benefits as well. These appeared to offer the protection I wanted for $100 less than Sidi's top of the line (and harder to put on) race boot, and it looks like they do just that.
I had to get these one size smaller than my previous Sidi's. I had a pair of 42's that fit very well, but had to go with 41 in this boot as the 42's were too large everywhere.
The design is excellent - get them right once, and from then on, the boot doesn't need another adjustment.
The range of adjustability is excellent.
The boots are very comfortable except for some pressure points on the outside edges of the toes and edge of the foot but I think any boot would be since it has to be rigid there. Very little break-in required - my first track session I kept missing my shifter like the boot was shorter than my old ones, but a comparison showed they were not and by the 2nd session, I had adjusted to the difference. If this Lorica material holds up as well as leather, then it is really an awesome material.
Ventilation is the best of any boot I've ever worn on a bike - when you start moving, the air moves like you aren't wearing boots at all!
They did squeak a little after a crash on the track on a rainy day, but that might be my own fault... Can't hear it over the exhaust anyway
I wear a 11.5 (USA) in a converse all star boot, anyone know if a 46 or a 47 should be my Sidi size?