Bra Fit FAQ: Band, Cup and Strap Questions Answered

Quick answer

A well-fitting bra stays put when you lift your arms, its band sits level and snug on the loosest hook, and its cups lie flat without gaping or digging. If one of those three fails, adjust the band or cup before blaming your size. Use the questions below to diagnose the specific problem.

How tight should a bra band be?

The band should feel firm but not painful, and it should stay level all the way around your ribcage. You should be able to slide two fingers under the back band, no more. If the band rides up when you raise your arms, it is too loose; if it leaves red marks or makes breathing feel restricted, it is too tight. Always fasten a new bra on the loosest hook so you can tighten it as the elastic relaxes over time.

What do cup gaps or overflow really mean?

Gaping at the top of the cup usually means the cup is too large or the shape does not match your breast tissue; overflowing at the top or sides means the cup is too small. Before changing cup size, scoop your breast tissue into the cup and smooth the top edge. If the gap or spill remains, try one cup size up or down. A cup that wrinkles only at the bottom may simply be sitting too low—hike the band up and re-scoop.

How should bra straps sit?

Straps should lie flat against your shoulders without digging in or sliding off. Tighten them just enough to keep the cups in place; the band, not the straps, should do most of the support work. If straps fall off your shoulders, the band may be too loose or the straps may be set too wide for your frame. Look for bras with fully adjustable, sewn-on straps if slippage is a recurring problem.

Why does the center gore lift away from my chest?

The center gore—the piece between the cups—should rest flat against your sternum. If it floats, the cups are likely too small or too shallow. Try a larger cup size or a style with a deeper plunge, which can sit closer to the body under low necklines. A gore that digs in painfully usually means the band is too tight or the gore is too tall for your ribcage shape.

How can I test fit before I buy?

Fasten the bra on the loosest hook, adjust the straps, and move through a few motions: raise your arms overhead, twist your torso, and bend forward. The band should stay level, the cups should stay in contact with your chest, and nothing should shift or dig. If you are between sizes, choose the band size that stays put and adjust the cup instead. Keep the tags on and check the return policy before wearing a bra for a full day.

Quick fit checks

Band test

Fasten on the loosest hook and raise your arms. The band should not ride up or twist. If it moves, go down a band size before changing cup size.

Cup test

Scoop all breast tissue into the cup and smooth the top edge. Check for gaping, spillage, or wrinkles. Gaping means try a smaller cup; spillage means try a larger cup.

Strap test

Straps should lie flat and stay on your shoulders when you move. Tighten only enough to keep cups in place. If straps still slip, look for a bra with sewn-on adjustable straps.

Gore test

The center piece should rest against your sternum without digging. Floating gore: try a larger cup or a plunge style. Digging gore: try a looser band or a lower gore.

Styles that address common fit complaints

• Alice Bandeau bra: Wire-free lace bandeau with fully adjustable, sewn-on straps and a straight-across silhouette designed for smaller busts. If slipping straps or a shifting band are your main issues, sewn-on adjustable straps keep the bra in place without a wire.
• Alice Plunge Bra: Deep V plunge bra in seamless crochet lace, engineered to center the bust and create natural cleavage under low-cut tops. A plunge shape can solve gore-lift problems under wrap or V-neck dresses where a full-coverage bra would show.
• Alice Demi Bra: Underwire demi bra with soft lace cups made from a single panel and no middle seam, providing gentle lift without padding. The seamless cup reduces the chance of irritation if you are sensitive to seams, and the demi shape suits lower necklines.