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SIDI Women's Fusion Lei Boots
  • SIDI Women's Fusion Lei Boots - Black
  • SIDI Women's Fusion Lei Boots - White/Black

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Video Review

SIDI Women's Fusion Lei Boots Videos

Sidi Women's Fusion Lei Boots

  • Vertebra system Achilles and rear calf protection panel
  • Replaceable nylon toe scuff pad
  • Replaceable outer ankle protective cap
  • Nylon shin deflector plate
  • Fully encapsulated heel cup
  • DuPont polymer toe shift pad
  • An elastic panel adjacent to the entry zipper allows a bind free zip and improved fit
  • Double stitched in all high stress areas
  • Zipper and VELCRO® brand closures closure system
  • Lorica outer construction
  • Perforated Teflon treated nylon lining

Mens and Womens Footwear

Footwear Conversion
EURO  US Mens US Womens
36 3-3.5 4.5-5
37 4-4.5 5.5-6
38 5-5.5 6.5-7
39 5.5-6 7-7.5
40 6.5-7 8-8.5
41 7-7.5 8.5-9
42 8-8.5 9.5-10
43 9-9.5 10.5-11
44 9.5-10 11-11.5
45 10.5-11 12-12.5
46 11-11.5 12.5-13
47 12-12.5
48 13-13.5
49 14
50 15

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Click here to see the full SIDI Boots Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black / 5.5/37 806829 SIS-FUL-BKBK-37 In Stock: Ships within 24 hours
Black / 6.5/38 806830 SIS-FUL-BKBK-38 In Stock: Ships within 24 hours
Black / 7/39 806831 SIS-FUL-BKBK-39 In Stock: Ships within 24 hours
Black / 8/40 806832 SIS-FUL-BKBK-40 Available: Requires 2-4 business days lead time prior to shipment.
Black / 8.5/41 806833 SIS-FUL-BKBK-41 Available: Requires 2-4 business days lead time prior to shipment.
Black / 9.5/42 806834 SIS-FUL-BKBK-42 In Stock: Ships within 24 hours
Black / 10.5/43 806835 SIS-FUL-BKBK-43 In Stock: Ships within 24 hours
White/Black / 4.5/36 885776 SIS-FUL-WHBK-36 In Stock: Ships within 24 hours
White/Black / 5.5/37 885777 SIS-FUL-WHBK-37 Available: Requires 2-4 business days lead time prior to shipment.
White/Black / 6.5/38 885778 SIS-FUL-WHBK-38 In Stock: Ships within 24 hours
White/Black / 7/39 885779 SIS-FUL-WHBK-39 In Stock: Ships within 24 hours
White/Black / 8/40 885780 SIS-FUL-WHBK-40 In Stock: Ships within 24 hours
White/Black / 8.5/41 885781 SIS-FUL-WHBK-41 In Stock: Ships within 24 hours
White/Black / 9.5/42 885782 SIS-FUL-WHBK-42 In Stock: Ships within 24 hours
White/Black / 10.5/43 885783 SIS-FUL-WHBK-43 In Stock: Ships within 24 hours


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SIDI Women's Fusion Lei Boots 4.8 5 24 24
Solid daily casual boot. Nice white leather. I've put about 1,900 miles on these boots so far and they are awesome. My commute to school is blessed with some Pennsylvania twisties, and these boots stay gripped and balanced on my pegs so well that my foot position isn't even a thought. The pucks are changeable if damaged and the white leather stays really clean. My group has a pair of eight-year-old SIDI men's boots that get handed down to new riders and besides a little leather damage at the toe, they look amazing. The plastics at the toe of the Fusion Lei are placed for maximum friction protection, so if you have a habit of dragging your toe at take off or at stops, you will be damaging the plastic and not the leather. I sometimes drag my heels at an easy stop, and the rubber sole has not even begun to change color. Shifting in these is a dream, after 100 miles I had it figured out. Air flow gets a bit sticky if you're over 80 degrees, but I wear running socks and my feet are fine. With a pair of heavy wool socks, these boots still fit and stay warm in 30 degree temps, and I run really cold. These boots will stretch a little, but I would go up a size if your toes are very cramped. I wear anything from a 7 to an 8 in American women's sizes, and I ordered a 39 after trying on the 40 at a local store and feeling like they were too big. The 39 fit perfectly. My feet are extremely narrow in size but expand towards the middle of the day, making many shoes uncomfortable, and I haven't had a problem with these boots. One note, if you order and the toe box is SORT of cramped while you are walking/standing, it will stretch and you likely won't notice on the bike. You will have to have slender calves, so if you are unable to zip up a mid-calf casual boot I would not recommend these boots. I recently went to the Revzilla headquarters and tried on a few pairs of women's pants, these boots fit under everything like a glove. They fit over skinny jeans with layers. Hiding these boots under pants feels like I'm somehow cheating on my gear because they're so pretty. My decision was between this boot and the more aggressive and more ankle-stable SIDI Vertigo Lei. The Vertigo has some of the best and most well placed protection on the women's boot market. My decision to go with the Fusion Lei is only because I commute to school and have to wear my boots all day. The Vertigo would have been my choice, based soley on their enhanced ankle protection, but they are simply not practical to be wearing around all day because they are just too stiff and they click. The ankle protection in the Fusion is built into the boot, so you will feel your ankle click into place, and I have no worry that my ankle will stay stable and in proper position in a down, and bonus: they look amazing in person. People at school compliment me on them all the time lol. I haven't ridden two up in these yet, but I don't think you'd have a problem and they would probably be one of the best pillion rider boots available. As for comfort, I just rode in these from 7am to 7pm, realized I forgot my casual shoes, and ended up wearing these out to a Latin club for four hours and dancing all night. They are made to balance so well that I could pretend I was wearing heels all night anyhow. That's why I'm currently hung over and writing this review, because my feet are only sort of sore, but these boots allow you enough top toe box room to put in a foot bed, so it won't happen again. Thank you SIDI. October 25, 2015
Great looking, great performance I absolutely adore these boots! I've had them for about a year now and they're still the comfiest darn things. I think when I first bought them it took awhile to get adjusted to how it feels when shifting (as I had less feeling than the boots I wore prior), but that passed pretty quickly and now I can't imagine riding in anything else. Sturdy construction. I don't think I have particularly small calves, but even with my pants tucked into the boot, sometimes they're a little loose in that area. (Mostly with jeans, less so with riding pants.) I've had an off while wearing them and my lower legs were completely protected and only a small scratch on the right toe of the boots. I purchased the black and white ones, They've actually stayed pretty clean with near daily riding. As for fit, I normally wear a US size 8, occasionally a 7.5. In most European brands I wear a 39 or a UK 6. The size 40 in these fit spot on. My only complaint is they get a bit warm in Las Vegas summer temps. (But what boot wouldn't?) September 21, 2015
Good product Had to get some getting use too... You have to break them n but besides that it looks good and feels good August 10, 2015
Do not buy if you have large calves These are stylish, well made boots with great protection. Unfortunately they are made with someone far smaller than me in mind. At it's largest my calf if 17 inches in circumference. This boot was only able to zip up halfway.  I do not recommend this is you feel your legs are even slightly large. June 1, 2015
Badazz Looking Boots The Sidi boots look absolutely amazing. They feel pretty light, which helps when you're trying to walk around in stiff boots like a robot. I think I need to break into them because it does make it challenging to find and step on the shifter and foot brakes. It took a little bit of getting used to. They feel a bit bulky but I definitely feel confident that my ankle, shins, and feet are protected IF anything does go south on the road. In terms of air flow. The boots aren't bad if you live a dry, non-humid environment. My region gets very hot and humid so my feet started sweating, which has never happen with any other shoes that I've worn. I thought that was strange. To be honest, I think it's a bit expensive but I guess they probably used some high-grade equipment and parts to produce these highly protective boots. I definitely feel safe in them. Overall, I am satisfied with the boots. Lots of people have been complimenting them because they definitely are beautiful boots. May 25, 2015
Perfect Fit I was a little iffy about getting boots online, but they fit true to size. I wouldn't be worried if they feel tight, they're supposed to! Don't want them flying off if you fall. May 11, 2015
Awesome riding boots When I ride I wear every piece of gear i can think of. So when I was shopping for riding boots I looked at every boot on the market. And it's tough for women because not only do I need my gear to be functional but it has to LOOK stylish also. And these boots met all my requirements. Has all the protection that sidi boots are known for and a feminine pattern around the boot. Don't expect to walk long distances in the boots though as they are extremely stiff but these are RIDING BOOTS. Not walking boots. I didn't have a problem with the size purchased the recommended size and they fit like a glove. These boots are perfect for the woman that want to look cute without sacrificing the protection. May 4, 2015
I highly recommend these boots! Love the look and feel. I'm very pleased with these boots. Very comfortable and minimal break in period. I am really impressed with how light they are. They fit good and I've had lots of complements on them already. Just stop searching and buy them already! You'll thank me later. March 30, 2015
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Have a functionality, fit, or otherwise product-specific question about the SIDI Women's Fusion Lei Boots? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

SIDI Women's Fusion Lei Boots
Already Asked: 13 Questions, 39 Answers
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RevZilla Store asked: Why did you choose this?
Nathan L: I got these for my wife because I have been a long time user of Sidi boots. I had a pair of Vertigo Corsa's, I now have Vortice's, and plan to get some Mag 1's. I have always been impressed by their quality, and level of protection. My wife is very happy with them also. Jul 9, 2015
Leann S: Reviews on the site and from fellow riders Jun 24, 2015
Courtney V: Because I really was looking for a sport-styled boot that offered a lot of the same protection you see in men's boots. This seems like it will be perfect. Jun 22, 2015
Barabara M: Reputation and styling. My accomplice wears Sidi boots and they have served him well in four crashes. May 8, 2015
M M: safety and style Apr 15, 2015
Doug D: Actually my daughter wants these for Christmas.....not sure why she chose these but she has done a lot of research and ask us to get her these.
Doug Duckett
Dec 8, 2014
Aly A: i love it and want buy it for my wife Sep 27, 2014
Deborah D: The video and reviews also they came in my size Jul 3, 2014
margeaux h: Excellent protection for the feet - a place most people overlook when riding a sport bike. Jun 13, 2014
Justin R: Recommended by the rider safety instructor. My wife rides, and we are all about wearing the gear. Jun 7, 2014
lori p: Most protection and comfort for the price. The brand is excellent. The color choice could be broader, but, I know they'll still look good. Put a pair of inserts in the shoe and they feel like tennis shoes! May 4, 2014
Torshay S: These have full protection plus that look HOT! Mar 20, 2014
Pimwadee L: I chose this boot because I wanted a boot that had more protection than a lot of commuter boots, but less aggressive than a race boot since I'm not looking to hit the tracks. When I crash, I want to minimize the possibility of crushing any part of my foot as much as possible. Feb 28, 2014
Deatrice D: Sidi is one of the most dependable brands in the motorcycle world! The feminine eye to stylish detail is amazing & the cost isn't too bad either. I love the track race style of this boot....which is going to build my confidence while riding! Sep 15, 2013
A S asked: I'm not sure which size I should order. Usually, I'm a US women's size 8 but I've always worn a Eur 39 in shoes/UK 6 in combat boots, both of which fit a little big. Revzilla lists these as a size 40/8 so I don't know if I should order the 40 as it considers them a US 8 or the 39 since that's what I typically wear in European sizes? Aug 5, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Stephanie G: I wear a size US 7 & I have the European 39 in these. They are a little big for me in the heel. What I mean by that is in order to get my heel to rest snugly in the back of the boot I have to tap it on the ground so it will slide into place. So, it may be the perfect fit for you. Get both sizes if you are unsure & return the one that doesn't work. Sometimes, that 1/2 inch makes all the difference! Good luck! Aug 5, 2014
Reply to Stephanie Good answer? Yes (1) No (0)
Christine D: I wear a size US size 9 but bought the boots in a 9.5. They fit perfectly. Depending on the thickness of your socks, I would go up at least a 1/2 size bigger. Aug 5, 2014
Reply to Christine Good answer? Yes (0) No (0)
Victoria B asked: I am thinking about buying these boots. However; before I buy I would like to know are these boots good for long periods of walking? Aug 12, 2013
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Robert B: I bought these boots for my wife. This is her take. As to 'long periods of walking' it depends on what surfaces and weather conditions. Obviously if its hot, you will get hot feet in a black calf length boot. These aren't hiking boots: they seem to work for moderate walks on smoother surfaces, but not spending hours trudging about. or going on hiking trails. It would also depend on how tough your feet are. If you are used to walking in boots then you'll probably be ok- within reason. But remember these are armored boots so they aren't going to feel like a pair of running shoes come time to walk about. ( I have a pair of Vortices which are stiffer and more armored and I can spend all day in them at track days riding and walking-- but my feet are really used to boots and like the feel). I personally find Sidi boots very comfortable and within limits are good for moderate walks. I would switch out to running shoes if I were going to be walking for hours and save the boots for what they are designed for. Aug 12, 2013
Reply to Robert Good answer? Yes (0) No (0)
rita p: I would say definitely NOT at least at first. I've worn mine a few times now and no way could I use them for "walking around" boots. The "leather" is very stiff, the sole is hard and the boot has a definite "forward leaning" shape to it. Not saying it's not a great boot. I like mine. But it's a bike/track boot not a walking around boot. Look at a touring type boot if you need something for riding and walking. Also about sizing...I have Sidi bicycle shoes too and I love them. I ordered these in the same size 43. I wear a size 9 to 9.5 shoe and have a narrow foot. I was told by customer svc that of all the boots these would tend to be the "narrowest". I still had to add an inner sole on top of the really thin, cheap one that comes in the boot. Still have room for thick socks. Hope this wasn't TMI! :) Aug 12, 2013
Reply to rita Good answer? Yes (0) No (0)
Justin W: I'm pleased with these boots. I've not done any major hikes or walks in them, but have wandered around city streets, sidewalks, and some back-country trails in them and found them to be quite comfortable. I've worn them on two five-day rides where I had them on 8-12 hours each day and they were great. Otherwise, I usually wear them for only shorter rides of 3-4 hours.

I've found them more comfortable with a padded shin sock (I wear my snow skiing socks in winter) as the shaft is a bit big on my calf. The foot compartment, heel, toe width, etc. is great.

They are the only boots I've owned, so I don't have another point of reference for feel / fit. FYI.
Aug 12, 2013
Reply to Justin Good answer? Yes (0) No (0)
Lorelei C: I bought these boots a few months ago, and I absolutely love them. They provide a lot of protection and they look nice which is always a plus. However, they aren't the most comfortable shoes to walk in. It's mostly just that they're really stiff, but they will break in rather quickly. I've even gone hiking in them. Again, it's not that the boots are painful to walk in or anything -- mostly just awkward and stiff. I would highly recommend. Aug 12, 2013
Reply to Lorelei Good answer? Yes (0) No (0)
Colleen M: About how long is "long periods" for you? I've worn them for a few hours at a time for walking/riding, and while they remain comfortable they do get quite hot after a short amount of time. I live in the south however, so the summer temperatures rarely fall below 90°. That being said, in cooler temperatures or winter they should be wonderful for both protection and long periods of walking/riding. Hope that helps! Aug 12, 2013
Reply to Colleen Good answer? Yes (0) No (0)
Alyssa Y: They're very comfortable once you break them in, which for me was like a couple weeks and even then they're a little stiff. Make sure to wear longer socks though, so they don't rub on your Achilles. Aug 12, 2013
Reply to Alyssa Good answer? Yes (0) No (0)
David W: No, not really. Bought these for my girlfriend and she agrees. They are stiff and not made for walking much. Aug 15, 2013
Reply to David Good answer? Yes (0) No (0)
Michael O: My wife loves them for riding and walking. Fine boots. Aug 13, 2013
Reply to Michael Good answer? Yes (0) No (0)
Alan P: No Aug 16, 2013
Reply to Alan Good answer? Yes (0) No (0)
A S asked: I am seriously considering buying these jut I am hesitant because of the height. I was wondering how they fit around your calves because mine are slightly larger and I have a hard time wearing some high boots. Is there anyway ican figure out if they will fit okay? Mar 26, 2014
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rita p: They are 12" high in the back and 16-17" around the top. I have 13" calves so plenty of room for me. I love these boots for the track. I would not recommend for touring. Much too stiff and clumsy for walking around. Mar 26, 2014
Reply to rita Good answer? Yes (0) No (0)
Darren R: I am 5'5 and I have large calves also. These boots are great as they have velcro at calf area and is adjustable. Mine fit just right on calves. Mar 26, 2014
Reply to Darren Good answer? Yes (0) No (0)
Alyssa Y: I lift weights so my calves are big, they fit mine pretty well and the paneling is stretchy around the top. You shouldn't have any problems. Mar 26, 2014
Reply to Alyssa Good answer? Yes (0) No (0)
Nicholas D asked: I bought these boots for my girlfriend who is a newer rider... she loves them... but she is a tiny woman in a 600rr... so with these boots... due to the stiffness.. she can't touch the ground.. will these break in and flex enough for her? She can only normally touch her tip toes on already lowered bike. Jun 3, 2015
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Joyelle M: I've owned mine for a year and they aren't any more flexible than they were when I first got them. I'm 5'3 but I have long legs so fortunately I can have both feet on the ground when riding. I'm thinking of getting some Dainese boots since they look like they'll have more bend to them. Being in these Sidi boots is awkward for me because the movement is way too unnatural. Jun 4, 2015
Reply to Joyelle Good answer? Yes (0) No (0)
luz l: The boots will feel hard and hardly flexible when new. After a few rides, walking and wear, she should be able to bend the front a little and firmly touch the ground. The boots are great, comfortable and provide protection, I highly recommended! Jun 3, 2015
Reply to luz Good answer? Yes (0) No (0)
A shopper asked: Does this boot have a replaceable sole? I am looking for an entry level race/street boot that I can replace the sole on to increase longevity of use. Aug 13, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Diane K: It looks like you could but probably would be costly & tricky as the toe sliders are such a good meet with the boot. Sliders are replaceable & the screws are close to the bottom of the boot.
Have 4,000 miles in 4 months on this boot. That includes walking & hiking around. Personally I'd buy another pair before I'd mess with the quality craftsmanship of the original. Good luck.
Aug 14, 2014
Reply to Diane Good answer? Yes (0) No (0)
rita p: These boots are so well made I'll probably never need to replace the sole. But to answer your question I took a look at the sole and it appears the sole could be replaced. My question would be is it possible to find a replacement sole for a race boot? Does SIDI make a replacement sole? BTW, love these boots! Aug 15, 2014
Reply to rita Good answer? Yes (0) No (0)
A shopper asked: I'm comparing this agains the women's Alpinestarts SMX-5, and see the differences, however do not see why this boot is not "track" acceptable. Jan 25, 2012
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RyanMotonation: Hey MotoQT -

This is Ryan from Motonation, the US distributors of Sidi. We make the stipulation that we wouldn't consider this a track book because we offer the Vertigo Lei (http://www.revzilla.com/product/sidi-womens-vertigo-lei-boots) which offer more protection for riders taking it to the track.

The Fusion Lei can be used at the track or for aggressive sport riding. I wouldn't really call this a touring boot at all since it does have toe sliders, encapsulated heel cup protection, etc.

The SMX-5 and the Fusion Lei both offer similar support, so it would just come down to preference over which boot you liked more. But again, this is a Sport boot and created for such riding.

attached is a Sidi ladies boot lineup for 2012.
Jan 27, 2012
Reply to RyanMotonation Good answer? Yes (2) No (0)
CobaltGS: Hi MotoQT, Looking at the specs and the construction of the boot in the video, the boot has the external features I would expect on a track worthy boot. When he opened up the boot, I did not see any of the racing type internal protection - that may be the differentiator between a track boot and a touring boot, but that is my speculation. To be sure, I suggest calling RevZilla customer service to ask why the video says the boot wasn't designed for the track. Jan 27, 2012
Reply to CobaltGS Good answer? Yes (0) No (0)
A shopper asked: How do you think the Fusions compare in stability, especially in the ankle region, to Alpinestars SMX-5 or SMX-6? I've been wearing the SMX-5 for a while and it's time for them to be replaced. I hear Sidi's are not as comfortable to walk around in, so assume they may offer more protection when it comes to twisting an ankle. Apr 19, 2015
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luz l: I can't speak for Alpinestars SMX-5, but I can say that you will find walking with SIDI very comfortable. I feel protected with my pair and have never felt any discomfort. I highly recommended! Apr 19, 2015
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A shopper asked: Im koreans in Korea and size 235mm
What size do you choose to?
Apr 3, 2015
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Kyle R: Your a size 6.5 in shoes in America. So that would be the size you'd wanna order. I love my pair, Good Luck! Apr 7, 2015
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A shopper asked: Does this boot have a steel toe or some other covering over the toe that prevents crushing? Thanks. Nov 15, 2014
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Courtney M: It is not steel toed. Just has bumpers along the sides and front of shoe. Nothing extra covering the toe Nov 15, 2014
Reply to Courtney Good answer? Yes (1) No (0)
A shopper asked: I was wondering where these come up to on the calf. I have slightly larger calves and find some boots to be too small in that area. How do these fit around the calf and also how could I find out if they will fit? Mar 26, 2014
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Matthew A: They hit mid-calf (about 10 inches from the heel, inside the boot). The top 3inches of the Velcro flap, above the zipper on the inside of the boot, has a thick elastic piece to allow for variances of calf size. My wife's calves are on the smaller side & she has about a half to an inch of "give" around the calf area. The circumference of the top of the boot (where it hits the calf), with the Velcro secured at the widest possible attachment, is a snug 18 inches. Apr 1, 2014
Reply to Matthew Good answer? Yes (0) No (0)
A shopper asked: I have been considering buying these boots for a while but I was wondering how do they do in rain? I have looked at the waterproof womens boots and it drives me nuts that they all look the same and there are really no style choices for women in waterproof section. Any info would help. Thank you. Dec 28, 2013
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Justin W: I've not ridden in a LOT of rain; but tackled a good 4 hours of heavy non-stop rain last year in them. I was soaked on the top, but my feet stayed DRY and relatively warm. I've been pleased thus far with these boots. Dec 30, 2013
Reply to Justin Good answer? Yes (1) No (0)
A shopper asked: Im Koreans in Korea and size 235mm
What size do you choose to?
Apr 3, 2015
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