Shapewear Size Guide: How to Measure for a Waist Trainer, Corset or Body Shaper
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The wrong size is the most common reason shapewear ends up in a drawer: too tight and it digs, rolls and makes breathing hard; too loose and it does nothing. Here is how to measure yourself, read a size chart and check the fit, whether you're buying a waist trainer, corset or body shaper.
What you need
- A soft tape measure (a piece of string and a ruler also works)
- A mirror, or someone to help
- Two minutes, measured over bare skin or thin underwear
How to measure your waist
- Find your natural waist. It's the narrowest part of your torso, usually 2–5 cm (1–2 in) above your belly button. Bend to one side: the crease that forms is your natural waist.
- Stand straight and relax. Breathe out normally. Don't suck in your stomach.
- Wrap the tape around. Keep it level all the way round, snug against the skin but not pressing in.
- Read the number. Write it down in both cm and inches, since size charts vary.
- Measure twice. If the two readings differ, use the larger one.
Other measurements that help
- Under-bust: directly under your bust, for longer body shapers.
- Hips: the widest point around your hips and bottom, for shapers that cover the lower tummy.
- Torso length: from under your bust to your hip bone while sitting. Shorter torsos may find tall corsets dig in when sitting.
Reading the size chart
- Always use the chart on the specific product page. Sizes vary a lot between brands and styles.
- Match your natural waist measurement first, then check under-bust and hips if listed.
- Between sizes? Choose the larger one. Sizing down doesn't shape you more; it just makes the garment uncomfortable and more likely to roll.
Checking the fit when it arrives
- It should feel firm, like a strong hug, but you should be able to breathe deeply, sit down and bend comfortably.
- Start on the loosest row of hooks. You can tighten as you get used to it.
- The edges should lie flat, not roll or dig in at the top or bottom.
- Pain, numbness, tingling, shortness of breath or heartburn mean it's too tight.
Which type is right for you?
Not sure whether you need a corset, a waist trainer belt or a body shaper? Read Waist Trainer vs Corset vs Body Shaper for a side-by-side comparison. Our options:
- Steel-Boned Corset Waist Trainer: firm hourglass shaping for events; sizes XS–XXXL
- Stretch Waist Trainer Belt: flexible everyday compression; sizes XS and up
Frequently asked questions
Should I buy a smaller size for more shaping?
No. A smaller size is harder to fasten, less comfortable and more likely to roll. The right size gives the best shape.
My measurements fall into two sizes. Which should I pick?
Go by your waist measurement and choose the larger size if you're in between.
Will my size change?
If your weight changes, measure again before reordering. Shapewear doesn't permanently change your waist size.
What if it doesn't fit?
Check our refund policy for how to return or exchange.