Binder Size Chart: How to Find Your Binder Size

Stand relaxed and breathe normally. Don't hold your breath or puff up.

• Chest: wrap the tape around the fullest part of your chest, usually across your nipples. Keep it level with the floor and snug, but not pulled tight. Write it down in inches.
• Underbust: wrap the tape just below your chest, at the top of your ribcage, snug but comfortable. This helps confirm your size for long binders.

Between sizes? Always size up. A binder that fits still compresses well, and you can wear it all day. One that's too small hurts, makes breathing harder, and usually ends up in a drawer.

For the cotton short tank, short racerback, long tank, and long racerback. Cotton binders are medium compression with a stretchy three-layer panel and no stiff inner layer, so they tend to fit true to your measurement.

Max compression binders have a stiff inner layer that doesn't stretch like cotton, so they run smaller. If you're at the top of a size range, go up.

Short tank and short racerback:

Long tank and long racerback:

The Sports Bro is light to medium compression, made for the gym and the pool.

Charts can vary a little by style, so check the size guide on the product page before you order.

• Cotton: a 92–95% cotton blend that's soft on your skin and breathes. It's more forgiving than max compression and an easy first binder.
• Max compression: the flattest chest of anything we carry. Not for workouts or sleep.
• Sports Bro: moisture-wicking, quick-dry, four-way stretch, with a double-layer front panel and flat seams. It works as a swim top. It's built for activity, so it won't flatten like max compression.

Shop all binders.

• Size up when in doubt. Going too small is the most common mistake, and it means pain, harder breathing, and red marks.
• Your binder size isn't your shirt size. It's based only on your chest measurement, and a medium in one brand isn't a medium in another.
• New binders feel a little firm. Most loosen a bit after a few wears and washes. That's normal, so give it a few wears before you decide.
• Styles fit differently. A racerback and a tank can feel different in the same size, especially max vs. cotton.
• Rotate two or more if you bind every day. Each one lasts longer and the elastic gets time to recover.

These rules are how you keep binding for years instead of a few months.

• Max compression binders: 8 hours a day at most. Cotton binders and the Sports Bro can be worn all day.
• Always take it off before you sleep.
• Take rest days when you can.
• Never double-bind or use tape over a binder.
• Take it off right away if you feel pain or shortness of breath.
• Check your skin for irritation after you take it off.

More in our Chest Binding 101 guide.

TGS binding tape comes in 3", 4", 5", 6", and 8" widths, in a range of skin tones plus true black.

• 3": low profile, good under fitted tops and for smaller chests.
• 4": our all-purpose width, for most chest sizes.
• 5": more coverage per strip.
• 6": more coverage again, for larger chests.
• 8": the most coverage per strip.

When tape makes sense:

• Swimming and water sports, where a regular binder can't go.
• Formal wear and fitted tops, since there are no seams to show.
• Active days at the gym, under the Sports Bro.
• Rest days from your binder, as a lighter option.

Always wear nipple guards under tape. New to taping? Read how to bind with tape, and binding in warm weather for summer.

Binding tape is final sale and can't be exchanged. See our refund policy.

Sizing a binder for the first time is hard, so every binder gets a free size exchange within 30 days of delivery. That includes sale binders, unless the product page says otherwise.

1. Start an exchange from your order status page, or email hello@transguysupply.com with your order number and the size you want. It has to be unworn, clean, and in its original packaging.
2. We send you a prepaid return label. It ships back in plain packaging with no logos or product names on the outside.
3. Drop it in the mail. Your new size ships within 2 business days of us getting yours.

One exchange per order. If your binder doesn't qualify, contact us anyway before assuming it's final. We'll work with you. Full details are in returns and exchanges.

• Chest Binding 101: binder types, safe wear times, care, and when to take a break. Start here if you're new.
• The best chest binders: what's out there and how our lineup compares.
• Binding in warm weather: breathable options, hydration, breaks, and when tape makes more sense.
• How to bind with tape: patch test, placement, removal, and skin care. Read it before your first roll.
• Youth packer giveaway: a monthly packer lottery for U.S. residents under 23.
• Donate a binder: send a binder you don't wear to Point of Pride, who passes it on to someone who needs it.