8 Signs You're Wearing the Wrong Bra Size
Up to 80% of women wear the wrong bra size. Here's how to tell if yours doesn't fit — and what to do about it.
Band rides up in back
The back of the band should sit level with the front, parallel to the floor. If it rides up, the band is too loose and not providing proper support.
Fix: Try going down one band size and up one cup size (sister size). Example: 36C to 34D.
Straps dig into your shoulders
Your straps shouldn't bear the bra's weight — the band should provide 80% of the support. If straps dig in even when loosened, the band isn't doing its job.
Fix: Go down a band size and up a cup size. Also consider wider straps for larger cups.
Cups overflow or spill
If breast tissue spills over the top ("double breast" effect) or bulges at the sides, your cups are too small. This is the most common fit mistake.
Fix: Go up one cup size. If spillage is at the sides, try a full-coverage style.
Cups gap or wrinkle
Empty space at the top of the cups or fabric that wrinkles means the cups are too large — or the bra style may not match your breast shape.
Fix: Go down one cup size. If only the top gaps, try a demi or plunge style instead of full coverage.
Center gore lifts away from chest
The center piece between the cups (the gore) should sit flat against your sternum. If it lifts or floats, the cups aren't large enough to contain your breast tissue.
Fix: Go up one cup size. For close-set breasts, try a plunge style with a lower gore.
Underwire sits on breast tissue
The underwire should follow the natural crease where your breast meets your ribcage. If it presses against breast tissue or pokes your underarms, the cup is too small.
Fix: Go up one cup size. If it pokes at the sides, the cup shape may not match your breast root width.
You constantly adjust throughout the day
A well-fitting bra should stay put once you put it on. If you're constantly pulling up straps, tugging down the band, or readjusting cups, something is off.
Fix: Use the bra fit troubleshooter to identify which specific adjustment points to the right size change.
Red marks or painful indentations
While slight marks from elastic are normal, deep red marks, pain, or skin irritation means something is too tight. This can cause headaches, back pain, and skin damage over time.
Fix: Go up in band size. If marks are only under the cups, the cup may be too small. Try both a size up in band and cup.
What to Do Next
If you recognized any of these signs, it's time to find your correct size. The good news: it only takes 60 seconds.