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The black Medium Gender Fluid chest binder is a low-key, everyday option for unbound chests of 30 to 33 inches. It is a half-length tank that slips under t-shirts and button-ups, uses a firm mesh panel rather than padding or wire to smooth the chest, and opens at the side with hooks so dressing in a hurry is simple.

Taking the measurement

Remove any bra or binder, stand relaxed, and run a soft tape around the widest point of your chest, which for most people is across or just above the nipples. A number from 30 to 33 inches means Medium. If you only know your bra size, a bra-to-chest converter chart gets you close, but a tape measure is more reliable.

The cut

Half length means it stops around the lower ribs, so the bottom edge doesn't ride up from the waistband or need tucking. The neckline is scooped low at front and back, which keeps it below the collar of most shirts. Black suits dark clothes, uniforms and layered looks.

Comfort checks

A good fit feels firm while still letting you take a full breath. The maker suggests a daily limit of eight hours, no sleeping in it and no workouts unless you size up. If it pinches at the hook line, open it one setting.

Specifications

  • Brand: Gender Fluid
  • Fabric: 82% nylon, 18% spandex
  • Compression: moderate, from a firm mesh front panel; no underwire, no padding
  • Closure: adjustable hooks along the side
  • Cut: half-length tank, scoop neckline front and back, unisex and form-fitting
  • Care: hand wash, air dry
  • Size: Medium, unbound chest 30–33 in
  • Colour: black. Also in white Medium and black XLarge

Shop more in our LGBTQ+ collection or browse lingerie and underwear.

Helpful Information

Frequently Asked Questions

Helpful answers about Gender Fluid Chest Binder Black - Medium.

Where exactly should I measure my chest for a binder?

Around the widest part of your unbound chest, usually across or slightly above the nipples, with the tape level all the way round. That number, not your bra band, decides the size.

Can I go swimming in this binder?

Gender Fluid doesn't say it's made for water, and chlorine and salt are hard on spandex. Keep it for dry, everyday wear.

Is it okay if it hurts a little at first?

No. The maker says binding should never be painful. Loosen the hooks, check your measurement, and if it still hurts, try the next size up.

Will it work under a fitted t-shirt?

Yes. It's cut short and close, with a low scoop at the front and back, so it sits flat under a fitted tee. Black is least visible under dark or mid-tone shirts.

How do I keep it in good shape?

Hand wash in cool water, press out the water in a towel and leave it to air dry. Avoid the dryer and fabric softener, which wear out the stretch faster.

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