You try your usual size. It doesn't fit. You go up. Still wrong. You leave with nothing and wonder what happened to your body.
Nothing happened to your body. You walked into a system with no rules.
There has been no universal women's sizing standard since 1983
The last US standardised women's sizing system was withdrawn in 1983. Since then, every brand has set its own measurements. A size 38 at one label is not the same as a size 38 anywhere else. A size L can represent a waistline anywhere in a range spanning over 14cm depending on the retailer.
Pudding.cool's February 2026 analysis mapped this in detail: in three pairs of mid-rise jeans from different high-street brands, the physical waistband measurements ranged from 32.5 to 36 inches — nearly a four-inch difference between garments labelled with the same size. Same number on the tag. Completely different garment.
Why it's worse for curvy bodies
The standard approach to women's clothing sizing starts with a smaller sample size and scales up, adding the same increment to each measurement as the sizes increase. This works reasonably well for bodies that scale proportionally in a straight line.
Curvy bodies don't. The hip-to-waist ratio changes at different body sizes. The shoulder-to-bust relationship shifts. When a brand adds 4cm to waist and 4cm to hip and calls that a size larger, it produces a garment that may fit one measurement and fail another.
Research from FIT (Fashion Institute of Technology) confirms what most curvy women already know from experience: only 23% of women are the same letter size across their three key measurements. For 77% of women — the majority — no single label fits across bust, waist, and hips at once. For curvy bodies, where the proportional differences between measurements are larger, the failure rate is higher still.
The fitting room moment you know
Waist fits, hip strains. Or hip fits, waist bags. You've tried different brands, different cuts, multiple sizes. It keeps happening, across different price points, different occasions, different styles.
This is not a body problem. It is a pattern problem. The gap in the changing room was structural before you ever tried the garment on. It was built into the way the industry grades its patterns.
What a different approach looks like
Building a brand that genuinely fits curvy bodies requires a different starting point. Not one pattern scaled up — different proportions at each size point. Different hip-to-waist relationships. Different shoulder-to-bust relationships. A fresh set of measurements where the body actually is, rather than where a scaling algorithm projects it to be.
At Faza Atelier, each size — S through XXL — starts from its own measurements. The proportions are recalculated at every size point. It is a more expensive, more time-intensive way to make clothes. It is also the only way to produce a garment that fits a curvy body as it actually is.
What to remember next time
The number or letter on the tag is a brand's internal reference. It is not a universal measurement and it is not a comment on your body. A size that doesn't fit is a garment that wasn't built for your proportions — which is a different problem from a body that doesn't fit the clothes.
The industry made this mess. Your body is not the mess.
FAQ
Why doesn't the fashion industry just standardise sizing?
Brands have commercial incentives to maintain their own sizing systems. A brand whose size small is larger than the industry average benefits from "vanity sizing" — customers feel smaller and respond positively. There is currently no regulatory body in most markets requiring standardisation, though the EU's Ecodesign regulation for textiles (entered into force in 2026) is creating pressure for transparency in sizing information.
What does it mean when a brand says each size has its own block?
A "block" or "sloper" is the master pattern a brand starts from when designing. If a brand has one block and grades it up (adds the same increments for each size), all the proportional relationships stay the same. If a brand builds a separate block at each size, the proportional relationships — hip-to-waist, shoulder-to-bust, etc. — can be recalculated to reflect how the body actually changes across sizes.
Is there any way to know before buying if a brand's sizing will work for me?
Look for brands that publish detailed garment measurements rather than just size charts. Garment measurements (the actual cm of the waistband, hip, etc.) tell you more than a generic chart. Brands that size by body measurements rather than arbitrary labels tend to have more consistent fit across their range.
Sources: Pudding.cool — Sizing Chaos (February 2026) · HuffPost — The Real Reason Clothing Brands Don't Use Universal Standard Sizing · FIT NYC — Grading / Sizing / Standards