Size Guide
All our garments are sized on one number: your chest measurement. It takes about 30 seconds, and it's the single best way to get a fit you can wear all day.
- Takes 30 seconds
- Inches & cm
- 30-day returns if it's not right
Quick size finder
Enter your chest measurement and we'll tell you your size.
Your size will appear here.
1How to measure
- Stand relaxed. Arms at your sides, breathing normally. Measure against bare skin, not over a shirt.
- Wrap the tape around the fullest part of your chest, across the nipple line. Keep it level all the way round and flat across your back.
- Read it at rest. Snug against the skin but not pulling in, and not while holding a breath.
No tape measure? Wrap a piece of string or a phone cable around your chest, then lay it against a ruler. Still stuck? Choose one size up from your usual t-shirt size.
2Find your size
Vests, shirts & chest binder
Our main size chart, used across the range.
| Size | Chest (inches) | Chest (cm) |
|---|---|---|
| M | 36–39 | 91–99 |
| L | 40–43 | 102–109 |
| XL | 44–47 | 112–119 |
| 2XL | 48–51 | 122–130 |
| 3XLSelected styles | 52–55 | 132–140 |
3XL is available in selected styles. Check the size options on the product page.
Max Compression Front-Fastening Vest
This vest has its own chart and covers a wider range of builds.
| Size | Chest (inches) | Chest (cm) |
|---|---|---|
| S | 32–35 | 81–89 |
| M | 36–39 | 91–99 |
| L | 40–44 | 102–112 |
| XL | 45–48 | 114–122 |
| 2XL | 49–52 | 124–132 |
| 3XL | 53–56 | 135–142 |
3Three rules for the right fit
Between sizes? Go up.
A 39.5 inch chest is an L, not an M. The larger size still flattens properly and stays comfortable all day.
Never size down.
Compression comes from the fabric and panels, not from stretching. A smaller size rolls, digs in and comes off by lunchtime.
Can't measure? One up.
Choose one size up from your usual t-shirt size. Our garments are cut snug by design.
4Check the fit
Just right
- Firm across the chest, then forgotten about after ten minutes
- You can take a full, deep breath
- You can raise your arms and sit down comfortably
- Lies flat under a t-shirt
Too tight: go up a size
- Breathing feels restricted
- Red marks still there an hour later
- The hem rolls up or the straps dig in
Too loose: go down a size
- Fabric wrinkles or bunches on the chest
- You can pinch a fold away from your body
- Your chest looks no flatter than without it
First time trying it on? Every compression garment is harder to get into than it is to wear. For pull-on styles, step in from the bottom like shorts, pull it up to your waist, then take one shoulder at a time. Give it twenty minutes before you judge the fit.
Still not sure?
Our full sizing guide goes into more detail, or send us a message using the chat button and we'll help you choose. If it's not right, you can return it within 30 days (trying it on at home is fine). See our return policy.