What to Do If Your Lingerie Size Falls Between Numbers

So, you’ve just measured yourself—bra band snug at 32 inches, bust at 37. You do the math: that’s a 32D… or is it a 34C? Welcome to the lingerie limbo zone, where your size doesn’t neatly fit into standard charts. You're not alone. In fact, over 60% of women wear the wrong bra size, and many get stuck in this confusing gap between numbers.

Why Sizing Gaps Happen

Lingerie sizing isn’t one-size-fits-all—literally. Different brands use slightly different grading rules. What’s a 34B in Brand A might feel like a tight 36B in Brand B. Plus, most brands increase cup volume by about 1 inch per letter, but band size affects cup fit too. That means a 32D and a 34C may have similar cup volumes—but very different support.

The Band-Cup Swap: Know Your Equivalents

If your measurements fall between sizes, try the "sister size" trick. Go up a band size and down a cup (or vice versa) for a similar cup volume with more comfort.

See the pattern? These are sister sizes—all roughly the same cup space, just distributed across different bands.

Real Talk: Try Before You Buy

Numbers don’t tell the whole story. A 32D from a French brand might fit tighter than a 32D from an American label. Always check brand-specific size charts. Pro tip: European brands often run smaller, so consider sizing up if shopping EU.

When Measurements Are In-Between

• Band is between sizes? Choose the tighter band (you can loosen hooks later) and adjust cup accordingly.
• Bust measurement lands between cup letters? Round up if you want more coverage, down for a sleeker fit.

For example: If your band measures 33 inches (between 32 and 34), go with the 34 band and drop to a C cup if you were borderline D. Comfort > perfection.

Embrace the Mix & Match

Some brands offer half-cups or adjustable slings. Others, like Panache or Ewa Michalak, specialize in fuller bust shapes and extended sizing. Don’t be afraid to mix band and cup knowledge across brands.

Final Tip: Fit Is Personal

Your body changes—weight, hormones, even time of day affect fit. Re-measure every 6 months. And remember: the right fit feels secure, not squeezing. If you’re spilling out or digging in, it’s not you—it’s the size.

Bottom line? Falling between lingerie sizes isn’t a flaw—it’s a fashion rite of passage. With a little know-how and some trial and error, you’ll find your sweet spot.