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Is 'vanity sizing' getting worse?

191 replies

LaburnumGrove · 04/04/2026 10:34

Years ago I was a 10 and my wedding dress was a 10 (very fitted waist) and my waist was 24 inches.

We all know that has changed and some 10s now are 28 inch waist.

But what about tops too?

I've noticed that more and more tops (T shirts etc) are available in a size 6 which was very unusual before.

I'm usually an 8 now in many clothes but some tops I'm verging on needing a 6. I'm petite and 32D bust but size 6 hardly ever existed in most brands years ago.

OP posts:
Fairenphort · 06/04/2026 16:53

No, only on Mumsnet.

A late 70s M&S size 12 top was 34", now it would be 36". 2" difference in 50 years. A size 14 was never a 24" waist in recent times, despite what MNers might want to claim.

Sizing varies hugely depending on brand and fashion style, I'm currently sizing down in jeans because I've gone from skinnies to wide leg flares, my usual size will fit, but I want them a bit closer fitting than is fashionable. It doesn't mean vanity sizing.
The 70s tops mentioned above would be skinny fitting as per the fashion.

Just buy what fits. I don't know anyone in real life who can't find clothes to fit and some of them are really slim. Only on MN is there a competitive skinnyness.

Clothes have got longer, that I can't deny and as a tall person I'm here for it. But girls in general seem to be taller.

PinsAndThrums · 06/04/2026 17:04

...most clothes today don't sit on the actual waist.

I bought a dress last summer. It seemed to fit OK, but it had loops for the thinnish fabric tie belt and they sat at the base of my ribcage. It was weird. When I checked the photos, the belt seemed to sit in roughly the same place on the model, so I'm inclined to think that was how it was meant to be. Nevertheless I couldn't get used to the way it felt and sent the dress back.

Now I'm inspecting dresses as carefully as I do trousers if there's a sash or belt involved.

Quietgirl9 · 06/04/2026 17:45

Humble brag

Legomania · 06/04/2026 18:42

PinsAndThrums · 06/04/2026 17:04

...most clothes today don't sit on the actual waist.

I bought a dress last summer. It seemed to fit OK, but it had loops for the thinnish fabric tie belt and they sat at the base of my ribcage. It was weird. When I checked the photos, the belt seemed to sit in roughly the same place on the model, so I'm inclined to think that was how it was meant to be. Nevertheless I couldn't get used to the way it felt and sent the dress back.

Now I'm inspecting dresses as carefully as I do trousers if there's a sash or belt involved.

Where is your waist in relation to your ribcage then?

Fairenphort · 06/04/2026 18:53

bagsandmags · 06/04/2026 15:48

Size 10 years ago used to be a 24 inch waist

But this ignores the fact that clothing styles have changed. Most clothes today don’t sit on the actual waist. Size 10 has always been 28 inch waist in my lifetime.

The waist thing is very relevant with jeans. Jeans go from hanging onto the hips, hence a big waist measurement to practically buttoning under the ribcage, hence a smaller waist and rinse and repeat over the years. We are back in a short boxy jumper phase like the 80s after a skinny rib polo phase. All these things affect sizing. Clothes in the 1950s were very fitted.

Petrine · 06/04/2026 19:11

Size 10 in the late 60’s and 70’s was 22” waist. I know because that was my size. I’m still a size 8-10 but my waist measures 26”.

I bought a vintage St Michael’s (M&S) skirt recently and it was labelled ‘26” waist - Large’. So a 26” waist was a large size then.

I’m not sure when m&S stopped using the St Michael’s brand name but I’m guessing at the end of the 70’s.

Petrine · 06/04/2026 19:13

Actually, I was way off in my dating of the demise of the M&S St Michael’s name… it was 1999-2000.

BringBackCatsEyes · 06/04/2026 19:26

Legomania · 06/04/2026 18:42

Where is your waist in relation to your ribcage then?

My waist is right where my ribcage stops - the bottom of your ribcage is where the definition of your waist starts isn't it?

BringBackCatsEyes · 06/04/2026 19:27

MynameisJune · 04/04/2026 10:41

Does it matter? As long as you can find clothes that fit properly does it really matter what size the label says?

it makes it harder to buy things online, or go to a shop and pick up a number of items; you need to take an 8,10 and 12 of everything.

OvernightBloats · 07/04/2026 09:23

There is not even any consistency in the manufacture of the clothes. I like Gap jeans, know which style I like. I have tried to buy several pairs in the same size, in the same style and the fitting changes massively. Some are bigger than others even when buying the same item.

Buying clothes is becoming more and more frustrating. There has to be consistency but there isn't. Maybe the answer is to ditch the classic way of sizing (using numbers) and instead use measurements. Or more guidance from the brands as to which size to try if you have certain size waist/bust/hips measurement.

HeidiLite · 07/04/2026 10:12

and to add insult to injury, manufacturer's sizing guides are not accurate either. I have ended up with wildly wrong sizes even if I carefully check the shop's own sizing guide and take all my measurements.

LaburnumGrove · 07/04/2026 10:17

PensionedCruiser · 06/04/2026 11:28

Going back further in time, as a child, I watched beauty contests on the TV (yes sexist and I'm glad they're not shown now). They always used to give out the contestants' "vital" statistsics - which were invariably 36" 24" 36". If I remember rightly, that was a size 12.

Oh, that was Miss World!

OP posts:
LlamaBasket · 07/04/2026 10:31

Hmm. Out of interest I just went and got out my old suitcase full of clothes that no longer fit…but I was saving just in case.

I’m not that old, I’m 45, so these clothes only go back 15 - 25 years, and not back to the 1950’s or any time when women did seem to be significantly smaller.

I’ve also spent the last year on Mounjaro and am now wearing a UK size 8 (vanity or not, I have no idea).

So, I pulled out a lot of old dresses from the case, mostly a size 10 or 12 and the brand Coast for the most part. I pulled out a Miss Selfridge skirt (pink cord ruffle edged mini - so cute) size 10. An Animal dress size 10. Some tops from Next in size 10. Some trousers from RI size 10.

I have just tried a lot of things on and they are all hanging off me. Which is a shame as now they are all too big for me! I should have done this 6 months ago. So, the likelihood is that 20 years ago I would have needed a size….8.

So unless we are talking about a REALLY long time ago, I don’t think things look to have changed that much. I had some beautiful dresses though.

LlamaBasket · 07/04/2026 10:42

Just realised that you are talking about a really long time ago lol! So my 20 year old clothing came after the change.
Happy to be feeling quite young this morning!!

PensionedCruiser · 07/04/2026 11:29

LaburnumGrove · 07/04/2026 10:17

Oh, that was Miss World!

Yes, and the lead up competitions. Miss Wales, Miss Scotland, Miss England, Miss Northern Ireland, Miss Great Britain and Miss United Kingdom. It went on for weeks because I think the regional competitions were televised too. I became a feminist when I realised that the winners had to be crowned and sashed in their bathing costumes rather than the gorgeous ball gowns they wore for one of their rounds! Dirty old men getting to touch half naked women. Actually, I think I remember kissing too. Yeuch!

FrauPaige · 07/04/2026 12:13

Yes, vanity sizing is a pain but as long as you know that on the highstreet you are likely a 4 and in the boutiques an 8/10, you are pretty safe.

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