Chest Binder Size Guide — Find Your Safe, Comfortable, Affirming Fit
Binding should never hurt.
This guide helps you measure with confidence—so you can move freely, breathe deeply, and feel seen.
The Right Fit Changes Everything
Safe Fit
Safe compression that protects.
Flexible support that moves with you.
All-Day Comfort
Move freely. Breathe easily.
Comfort that lasts all day.
Stress-Free Sizing
Just a few quick measurements.
No guesswork, no stress.
How to Measure Your Chest
Two simple numbers help us find your safest, most affirming fit—tailored just for your body.
Measure Your Top Bust
Wrap a soft measuring tape snugly around the fullest part of your chest—across the nipples and under your arms.
For the most accurate result, measure against bare skin.
Know Your Weight
Enter your current weight to receive a safe, personalized size recommendation—based on your unique body composition.
This helps ensure your fit is both supportive and comfortable.
No tape? Use a string and a ruler.
Wrap gently—your comfort always comes first.
Not Sure Which Binder’s Right for You?
Take our quick fit quiz — it’s fast, safe, and built for gender-diverse bodies.
✅ Privacy-safe. No login. 100% guidance.
Take the Fit Quiz →Takes less than 60 seconds
Find Your Best Binder Fit
In Seconds
Enter your top bust and current weight. We'll recommend your safest, most affirming size — personalized to your body.
This recommendation is based on real customer fit data — but every body is different. If you’re unsure, use the full chart and fit tips below to confirm your best fit.
TOMSCOUT Sizing Chart
Use this chart to confirm your size based on your top bust and weight. Between sizes? Keep scrolling for expert tips on choosing your ideal fit.
Between Sizes? Here’s What to Do
Choose your size based on how your body feels — not just the numbers.
Go one size up if you:
- Have broad shoulders or a muscular build
- Are above the listed weight range
- Prefer more room to breathe and move
Go one size down if you:
- Have a lean or lightweight frame
- Prefer a snug, flatter look
We recommend sizing up — especially if you’re new to binding or between sizes. Comfort and safety always come first.
No Measuring Tape?
We’ve Got You Covered
You can still find your binder size using your bra size — no tools required.
Bra Size to Top Bust Converter
Use this chart to estimate your top bust in centimeters based on your regular bra or sports bra size.
This method is a helpful backup — but for the most accurate fit, we recommend measuring with a soft tape whenever possible.
Avoid Common Sizing Mistakes
Use these smart reminders to get your safest, most comfortable fit — no guesswork required.
Brand sizes aren’t universal
TOMSCOUT binders are uniquely designed. Always use our sizing guide — not another brand’s chart.
Always re-measure
Even if you’ve bought before, a fresh measurement takes seconds — and prevents returns or discomfort.
Don’t guess — measure
Measuring beats guessing every time — it’s the fastest way to get a binder that feels right.
Choose your compression level
Some want firm flattening. Others prefer light, breathable support. Pick what feels right for your body.
Re-check over time
Weight, muscle, or hormone changes? A quick re-measure keeps your fit safe and affirming.
Fabric impacts fit
Different materials stretch, support, and compress differently. Check our Binder Comparison Guide to find what works best for you.
Choose Your Binder Style
Now that you’ve found your size, choose the binder that fits your goals—whether it’s comfort, structure, or something in between.
TOMSCOUT STRENGTH
High Compression. Clean Silhouette.
Built to Affirm.
TOMSCOUT BECOMING
Gentle Compression. Full Ease.
Made to Evolve.
Frequently Asked Questions
For your best TOMSCOUT fit, always use our size guide—not past sizes from other brands.
📏 If you're using inches:
- Always round up (e.g. 33¾″ → 34″)
- Never round down — that leads to a too-tight fit
- Let you move freely and breathe with ease
- Flatten more than a sports bra
- Can’t breathe or feel back pain? → You likely need a larger size
- Chest still looks similar to a sports bra? → Consider sizing down
- Want a firmer, more compressed fit? → Choose the smaller size
- Have broad shoulders or a higher BMI? → Go larger for comfort
We offer a fast, no-hassle exchange policy so you can switch sizes easily and get the fit you deserve.
Just click the “Size Chart” link beside the size options to compare your measurements.