>Like, why doesn't the market solve for this? If the median woman can't buy clothing that fits in many brands, surely that's a huge marketing opportunity for any of the thousands of other clothing brands?

Because

- in reality it's not much of a problem. Billions of women manage to buy and wear clothes just fine. Some might fit slightly better or worse, but unless you have very special body shape (and even extreme think/extreme overweight/tall/short are covered by niche brands) you can get in any clothes store and get clothes to wear

- some random brand making something that fits better doesn't mean anybody is going to buy it. First because see above, and also because a lot of clothes purchases are about brand and fashion, not mere fit.

- if some women absolutely can't find something of their size in a specific brand, that makes the brand even more exclusive, like "for fit people only". Obviously brands for thicker and even obese women also exist, but they're seen as a brand of need, not a brand you'd be proud having to wear

In the "THe VILLaIN aRC oF VANiTY SiZINg" section, vanity sizing is framed as marketing strategy which is successful because of the psychology around that - linking out to https://www.sciencedirect.com/science/article/abs/pii/S10577... for more detail.

It certainly wouldn't be the first time the most profitable marketing strategy is unrelated to aligning with what's optimal for the consumer.

That's what sizing guides are theoretically for, if you add more sizing systems it gets even more confusing. I don't think the issue is as bad as the post portrays it though. Its true that sizes can be all over the place but like I am size small woman's and if I buy small most of the time it will fit or at least somewhat fit. I am not a standard model size either as I need things that are for more hourglass figure rather than straight but that just requires being selective about which styles to buy. A medium also usually fits if I need something looser. I double check the reviews if its online or try it on in person and as long as its not something that requires precise measurements its usually fine. For things like jeans I shop in person and try things on from a few sizes or just know approximate size I am or rely on reviews. Many items these days are stretchy and even when they don't fit perfectly they are wearable or you can return them, its not that complicated. I do only shop a few brands or from in person stores or I can often approximate sizing from how big something looks or by looking at review photos.

The pockets thing is similar, not having pockets is annoying but its not that big of a deal. I rather buy something cute without pockets than search for something with some. If it has them great, if it doesnt oh well I will just use my purse. Barely anything fits in pockets anyways and I have a feeling other women feel similarly which is why many of us buy things whether or not they have pockets.

I'm pretty sure everyone who cares about getting a good fit (and isn't simply trying the clothes on in person) is looking at measurements, which you can usually find for any half-decent vendor (though it may take some poking around their site). The best have it per-garment (or per-cut), less-good but usually still alright is having a guide to the measurements they base their sizing off of.

Even guys can't really get away with just "Small, Medium, Large" if they want a decent fit that they can predict from just the label. Modifiers for the cut become necessary (regular, slim, relaxed, extra-slim, that kind of thing). And that's for clothes that are pretty forgiving on the fit, like knits...

Women's clothes are even trickier. It's basically impossible to boil them down to one or even two size metrics or labels unless you're relying on a shitload of stretch in every other part of the garment, which is something that usually only very bad garments do (think: Temu). Women's proportions are also far more variable. Shoulder-bust-waist-hip often sees some pretty wild differences, like two women will match on a couple of those measurements and be way far apart on the others. Then you've got height to worry about. Dudes can be similarly far outside the norm of distributions for the relations between their key measurements, but it's not as common—most of us have it relatively easy.

Looking at the actual measurements, though, I've found to be very reliable. I buy almost all my clothes on eBay and directly from brands on their websites, with great success, because I know both my own key measurements, and the dimensions of clothes that fit me well (I have some notes, doesn't take a lot of data points to have enough to be pretty accurate). I've also ordered for my wife with a similar strategy, works well there, though you're way more likely to run into cases of "OK there are zero sizes of this garment that will work for you, just gotta give up on this one" because of the issue above.

I think the market opportunity can be a standard and eventually get labels to include your standard in addition to their traditional labeling.

Figure out the variables (like shape, inseam, width, whatever else) for each article of clothing. Then freely distribute this and begin to catalog popular items. You can crowdsource some of this. The idea is people will look up the clothes as per your scale.

Then after you index a lot of clothes, you can search by exact measurements and then you can hit up clothing manufacturers to use their propriety code in their marketing or promote their brands on your site.

I wonder if understanding a particular brand's sizing drives up repeat purchases.

As a bloke I think I can see one reason why - I buy sports kit the model looks good in but I won’t. Every damn time! Then end up buying again.

I mean, I get that it sucks online, but in person? Who cares what the label says? I'm an adult. I can easily tell by looking at a garment how it's going to fit me.

That said, if we could just get the critical measure online that'd be fantastic. No need for sizes, I know how big inches and centimeters are.

And, as it turns out, my favorite retailers do in fact include measurements, but I'd rather have a few quality items than lots of garbage, which is also why I own a sewing machine because sometimes I really love a dress but the manufacturer doesn't accommodate my specific frame. I developed this practice when I was broke and shopping out of thrift stores. It allowed me to buy almost anything and tailor it to make it fit. Really broadens your fashion horizons.

With regard to why sizing is difficult, I'd guess it's just consumer laziness or cognitive dissonance. Although it's maybe a little bit of efficiency too. How many models should I produce (and how many lines do I have to run) to fit every woman just right instead of lying to all of them? For pants alone, if you really want it to actually fit, you're going to need ankle, calf, knee, thigh, inseam/outseam, glute, hip, and waist (and crotch to waistband if you're offering different rises). So if you've got even just 5 measurements (probably not enough as no way do all women fit tailored within 5 different calf sizes), you've got 5^9 different products (and therefore machine configurations) to cover just that space, because yes there are women with massive calfs and small thighs or same waist/hip or whatever combination you can imagine) and that's all just for literally one style. If you've got five different pants that's immediately 5^9.

Lots of (american) women are perfectly fine with their 36in underbust but would be shamed to admit they need a 46in hip with their 32in waist for all that ass. Much better to just lie and say I need an 8 which will not in any world ever make it over my butt.

Maybe we can compromise on a 'call it' measurement which is on average 2 less than the prevailing standard would suggest. If your countries' system would have you in a 8, you can 'call it a 6', and then we're all happy.

>"Sizes are all made up anyway — why can’t we make them better?"

I will settle for making them consistent. Multiple times, I have ordered the same clothing in the same size from the same webpage in different colors, and some colors fit, and the others do not.

I am surprised that a women's clothing startup prioritizing pockets big enough for smartphones hasn't usurped the incumbents. I would have figured the convenience of being able to store a device that people have their heads down in 95% of the time would be sufficient to supersede more vanity related motivations.

same, I wonder why this is. Is it just that modelling / marketing is more effective with things as they presently are? It seems there is a market for better fitting clothes -- likely half (or more!) of clothes bought would make the end customer happier if the items just had a better fit. Why have financial incentives not achieved this?