The sizes depend mainly on:
- high chest circumference (under the armpits, above the pectorals)
- low chest circumference (under the breasts or pectorals)
Measure with a soft tape measure, flat on the skin, without forcing.
📏 Size Chart (FTM Binder Size Guide)
| Size | Equivalent cap | Upper chest | Lower chest | Indicative weight |
|---|---|---|---|---|
| S | 70A, 70B, 32A, 32B | < 79 cm | < 68 cm | 45 ± 2kg |
| M | 75A, 75B, 34A, 34B | 80 - 84 cm | 68 - 75 cm | 50 ± 2kg |
| L | 80A, 80B, 36A, 36B | 84 - 88 cm | 76 - 80 cm | 55 ± 2kg |
| XL | 85A, 85B, 38A, 38B | 88 - 92 cm | 82 - 85 cm | 60 ± 2kg |
| 2XL | 90A, 90B, 40A, 40B | 92 - 96 cm | 86 - 90 cm | 65 ± 2kg |
| 3XL | 95A, 95B, 42A, 42B | 96 - 100 cm | 91 - 95 cm | 70 ± 2kg |
| 4XL | 100A, 100B, 44A, 44B | 100 - 105 cm | 96 - 100 cm | 75 ± 2kg |
| 5XL | 105A, 105B, 46A, 46B | 105 - 110 cm | 101 - 105 cm | 80 ± 2kg |
🧠 Simple tip
- Between sizes? Take the bigger to avoid excessive compression.
- You want an effect ultra-flat for a short time? You can choose one size smaller, but only for a few hours.
📐 Which size should I choose for my figure?
The shape of your binder directly influences your comfort and the final look under your clothes:
- Binder Court: Recommended for small to medium busts. It offers maximum discretion under crop tops and allows for greater freedom of movement during sports. It's also the ideal choice for the summer heat.
- Mid-length binder: A balanced compromise offering stable support. It is perfectly suited for everyday use and is the ideal choice for a first binder.
- Binder Long: Recommended for larger busts as it offers strong support along its entire length. It ensures a straighter silhouette and has the advantage of not riding up during the day.
🎯 Recommendations by Use & Situation
Once you've found your size, refine your choice according to your lifestyle:
First Binder (Beginner Selection)
For a first experience, choose a model medium length or an gentle compressionThese models are designed to be easier to put on and gentler on the body.
Binders Sport
Opt to short format Made with stretchy and breathable materials. This allows perspiration to wick away while maintaining optimal freedom of movement during your weight training sessions or physical activities.
Summer Binders / Ultra-Breathable
Choose lightweight fabrics and shorter cuts to better cope with summer temperatures. These styles minimize heat retention while providing the desired slimming effect.
Invisible/Discreet Binders
For complete discretion under fitted clothing or white shirts, opt for our "second skin" models. Their cut is designed to leave no visible lines under the fabric.
Binders for Everyday Use
The focus should be on balanced support that allows the garment to be worn for extended periods (not exceeding 8 to 10 hours). The model medium length is often the most popular for its lasting comfort.
🖤 For AMAB bodies
- A binder can also be useful for smooth the torso, flatten a prosthesis or wear certain tight tops.
- It is also sometimes used to create an androgynous or non-binary trans look.
⚠️ Safety!
A binder must flatten without compressing to the extreme. You must be able to:
Don't sleep never with a binder, and take regular breaks 🙏
breathe normally ✅
move freely ✅
wear it maximum 8 hours a day ❗
✉️ Need personalized advice?
If you have any doubts about choosing a size, material, or specific model, our team is here to guide you and help you select a binder perfectly suited to your body and comfort. We pride ourselves on offering responsive and friendly customer service to answer all your technical or practical questions.
Feel free to send us a message directly by email with any questions or information about our products at the following address: contact@trans-boutique.frA team of experts is available to assist you from Monday to Friday to ensure a smooth and secure shopping experience.