A teardrop breast shape is fuller below the nipple line and less full above it, so cups gap at the top unless the bra shape matches that lower-heavy volume.
Most bras suit a rounder, evenly full breast, so the mismatch shows as upper-cup gapping, a wire creeping onto tissue, or a band riding up. It’s a shape question more than a size question — which is why “32B” can keep producing a gap. Once you know the shape, the fix is a short list of cuts and one sizing adjustment.
What Actually Defines A Teardrop Breast Shape?
The shape is defined by where volume sits, not cup size. Teardrop breasts carry more tissue below the nipple and less above, the upper slope is shallower than a round or “even” shape’s, the underside projects more, and the top slopes gradually toward the chest wall.
Two consequences follow: fabric covering upper-cup space has nothing to fill, so it wrinkles or lifts away; and a shallow or closed cup flattens the lower projection, pushing tissue up and out of position. That produces the classic complaints — gaping at the top edge, a wire pressing into the breast instead of resting behind it, distorted cups, and straps doing work the cups should do.
Why Cups Gap And Where The Wire Should Sit
Upper-cup gaping is a shape mismatch, not a mismeasurement: a full-coverage cup assumes upper fullness that isn’t there, so the extra fabric has no anchor. The National Breast Cancer Foundation’s fit guidance puts it plainly: the wire should sit behind all breast tissue, lie flat against the ribcage, and never dig in. Check fit in this order:
- Band: snug and level front and back. If it climbs, go down a band size.
- Underwire: sits in the crease under the breast, flat on the ribcage, fully behind the tissue.
- Cups: hold everything without side spillage or top-edge wrinkles.
- Straps: stay put without digging; they support, they don’t lift the bra.
If the wire sits on tissue or digs into a rib, that’s a fit failure — not something to wear in over a week.
| Bra Style | Why It Suits A Teardrop Shape | What To Watch For |
|---|---|---|
| Balconette | Lower-cut top edge and horizontal seam that lifts from the bottom | Best lightly lined rather than padded |
| Demi / Half-Cup | Covers the lower half, leaves the upper edge mostly open | Confirm the wire still sits behind all tissue |
| Plunge | Angled upper edge follows the natural slope instead of fighting it | Check that the center gore lies flat |
| Side-Support | Brings lower and side volume forward without adding top bulk | Sizing down can flatten the projection |
| Lightly Lined / Molded | Holds shape with minimal top volume to gap | Skip anything heavily padded at the apex |
| Full-Coverage | Usually wrong unless the cup is very open on top | Empty upper fabric is the failure sign |
| Unlined Seamed | Seams shape to the breast rather than the reverse | Wrinkling means the cup is too tall or too shallow |
How To Size And Fit For This Shape
Measure the band under the bust and the bust at its fullest, then subtract the band figure from the bust figure to estimate cup size — the standard approach both the National Breast Cancer Foundation and Glamour’s fit guide describe. Treat the result as a starting point, because shape, not size alone, decides whether a cup works.
The adjustment that solves most teardrop gaping is sister sizing: drop one band size and go up one cup size. A 34B becomes a 32C, keeping roughly the same cup volume while the tighter band lifts from underneath — precisely what the upper cup is missing.
Test a new cup by moving — reach overhead, bend forward, twist. Straps that slip, returning gaping, or a wire shifting onto tissue mean try the sister size. Once the size is dialed in, picking the right style matters too — our guide to the best bras for teardrop breasts walks through tested picks for this shape.
Adjusting Straps, Bands, And Wires For Lift
Adjust straps only after the band is right, since a loose band lets straps take load they can’t carry. Tighten each strap until it rests flat, then move; if it digs in, the band is too loose and should come down a size. If shortening straps pulls the wire up onto tissue, the cup is the problem, not strap length.
Nike’s sports bra fit guidance makes the same point: fit each layer from the band outward and test in motion rather than standing still. The principle holds for everyday bras too.
Common Questions
Can a teardrop shape wear a full-coverage bra?
Yes, if the cup is genuinely open along the top edge and not built for upper fullness. Most full-coverage styles assume even fullness, so the upper fabric lifts away. Look for a lower-cut or more open top edge before ruling the style out.
Does gaping at the top mean the cup is too big?
Usually not. Upper-edge gaping on a teardrop shape comes from cup shape, not extra volume, so sizing down often worsens it by flattening the lower projection. Try a tighter band with a larger cup first, and check the wire before changing size.
How often should the band move during the day?
A well-fitted band should stay level and in place through normal wear. If it climbs your back, sags in front, or needs constant repositioning, it’s too loose — go down a band size and up a cup size to keep volume while gaining support.
Sources
- National Breast Cancer Foundation. “Bra Fit Guide” Underwire should sit behind all breast tissue and lie flat against the ribcage.
- Glamour. “How To Measure Your Bra Size” Band and bust measurement method for estimating cup size.
- Nike. “Women’s Sports Bra Fit Guide” Band-first fitting order and testing fit in motion.