Size Guide
Most of our pieces come in three sizes, and some are one size with plenty of give. Here's how our sizing maps to UK dress sizes, and how to work out which is right for you.
Our sizes
| Our size | UK dress size |
|---|---|
| Small | UK 6–8 |
| Medium | UK 8–10 |
| Large | UK 10–12 |
| One Size | UK 6–12 |
If you're between sizes — a UK 8 or a UK 10 — we'd suggest sizing up for anything structured or tailored, and sizing down for anything with stretch, ruching or a self-tie fastening.
One size pieces
Where a piece is listed as One Size, it's designed to fit UK 6–12. These are usually styles with stretch, adjustable ties or a draped cut that works across several sizes. If you're at either end of that range and want to be sure, message us before ordering and we'll measure the actual piece for you.
How to measure yourself
Use a soft tape measure, over underwear rather than clothing, and keep the tape level and comfortably snug rather than tight.
- Bust — around the fullest part of your chest, with the tape flat across your back.
- Waist — around the narrowest part of your torso, usually just above the belly button.
- Hips — around the fullest part, roughly 20cm below your waist.
UK size reference
These are approximate body measurements for standard UK sizing, to help you place yourself. They describe the body, not the garment — individual pieces will vary depending on cut and fabric.
| UK size | Bust | Waist | Hips |
|---|---|---|---|
| 6 | 79cm / 31" | 61cm / 24" | 86cm / 34" |
| 8 | 84cm / 33" | 66cm / 26" | 91cm / 36" |
| 10 | 89cm / 35" | 71cm / 28" | 96cm / 38" |
| 12 | 94cm / 37" | 76cm / 30" | 101cm / 40" |
Still not sure?
Message us on Instagram at @cesoir.co.uk or email cesoir.online@gmail.com with the piece you're looking at, and we'll measure it flat and tell you exactly what it comes up as. We'd far rather do that than have you send it back.