Amazon has a great bit of Gender going on if you're trying to find boots
You might think you pick Men's or Women's and a size, but no!
The sizes themselves are gendered, you have to pick size Mens-10 or size Womens-12, which is separate from the gender option

width is gendered too.
You can't get a boot that's for Women in Womens-12 in XX-wide, you have to get:
Gender: Women
Size: Womens-12
Width: Womens-XX-wide

Feet are clearly the most gendered part of the body

@foone My family have worked in the shoe businesses for 3 generations so let me share a fun but probably irrelevant fact:

Foot width is tied to your weight (lose weight it gets narrower a bit cause less pressure pushing on it), and US shoe widths are based around the *average weight* for a given shoe size and gender

@foone for some reason my brain went to "gender but as in cable connector" which I can't stop thinking about now and so I guess feet are the male connector and shoes are the female. Is a mannequin foot actually just a "male shoe"? Are socks just a very short cable connecting your foot to the shoe?
@Plan_A_to_Y "Are socks just a very short cable connecting your foot to the shoe?" is one of the worst things I've read in a long while, thank you!

@foone I have a question.. are shoe sizes non gendered elsewhere?

Australia, UK and seemingly US (at least from the conversion chart I had working selling shoes sometimes in a department store)

all i remember is genders and wondering why.

@LottieVixen No, this is a common thing in the shoe industry, from what I've sen. Amazon's filtering implementation just makes it very obvious
@LottieVixen @foone afaik continental Europe shoe size is not gendered
@obfusk @LottieVixen I'll have to import some of these european genderless shoes
@obfusk @LottieVixen @foone it's not, because it's just a direct measurement of foot length. But width sometimes will be (since that isn't standardised the same way)
@swift @obfusk @LottieVixen That makes exactly the amount of sense I expect, good to know

@swift @obfusk @foone well.. fuck I'm glad I asked because I'm learning stuff :D

but also aa it's annoyingly complicated

@LottieVixen @foone Picking the first size chart in search results, UK shoe sizes don't appear to be gendered (the charts are gendered but that just seems to change the range of available sizes; they convert to the same European size).

That said, the default width is still typically gendered.

@foone A little while back Amazon was trying to sell me women’s coffee mugs and unisex license plate frames 🙄

@foone
That's probably not on Amazon, Womens-10 and Mens-10 are different sizes in general

European sizing is non-gendered, but that wouldn't have a size 10 (unless it's for a doll)

@foone I worked at a retailer who integrated shoe sales with Amazon, and variant titling is a dreadful mess... the first vendor to list a variant sets the text for it (this can be overridden by other vendors that have more amazon privs). But the other vendor has to match up the variant by barcode and other things.
@foone We had a whole system for matching variants on the Amazon feed (and every national site is individually different, and some preload a feed from .com - so EU sites sometimes have the US sizes prefixed by US. So you sometimes find a size on an EU site that is "US US 10"!