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

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SIDI Fusion Lei Women's Boots Videos

Sidi Women's Fusion Lei Boots

Sidi Women's Fusion Lei Boots are suitable for track and aggressive sport touring and feature a wider calf area and women's specific foot bed. Protection includes shin, heel, ankle and toe box reinforcements. If you dive into corners on a regular basis but aren't looking for a heavy, full-blown track boot the Fusion Lei Boots may be exactly what you're looking for. 


  • 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

Sidi Footwear Sizing

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.

How To Measure

FT Feet What size shoe do you wear?
Product Style RevZilla Item # Manufacturer Product # Availability
Black / 5.5/37 806829 SIS-FUL-BKBK-37 Out of Stock
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: Requires 2-3 business days lead time prior to shipment
Black / 8/40 806832 SIS-FUL-BKBK-40 Only 3 Left: Ships within 24 hours
Black / 8.5/41 806833 SIS-FUL-BKBK-41 Out of Stock
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 Only 2 Left: Ships within 24 hours
White/Black / 5.5/37 885777 SIS-FUL-WHBK-37 In Stock: Requires 2-3 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 Fusion Lei Women's Boots 4.7 5 27 27
great boots overall boots are really stiff when you get them. Need a bit of breaking in. They are true to size (the size listed under sizing) so dont make the same mistake i did reading a review saying they are too big.. April 7, 2016
Great quality boot Overall ,great looking boot, protection, just need broken into... March 15, 2016
Nice boot, too large I purchased these boots because I was looking for an armored boot for track days. I wear US women's size 7-7.5 shoes, and bought these in a size 39. According to the size chart, this should have been a perfect fit. However, when I received them they were too big for me. I ended up giving them to my sister who has a size 8 foot and they fit her perfectly. That being said, they are stylish and attractive. February 5, 2016
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
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