Marissa Bra Fit Guide for Petite Busts
By The Little Bra Company® Small Bras & Lingerie in AA, A, B, C | Published: 2026-10-25
Category: How-to Guides
Learn how to fit the Marissa bra for petite busts. Step-by-step guide to find your perfect size in AA, A, and B cups.
Quick answer
The Marissa bra fits petite busts best when you focus on band snugness and cup depth. Follow these steps to avoid gaping and get a secure, flattering shape.
Why the Marissa works for smaller frames
The Marissa features soft geometric-lace balconette cups that stretch comfortably over each breast. Its underwire lifts and separates without added padding, making it ideal for AA, A, and B cups that need a natural shape. The convertible straps also allow you to switch to a racerback or crisscross style for better support on narrow shoulders.
Common fitting challenges and trade-offs
Because the cups are unlined and stretchy, you may notice slight wrinkling if your breast tissue is very shallow. If you prefer a smoother silhouette under thin fabrics, consider a lightly padded style instead. The balconette shape works especially well for wide-set breasts, but if your breasts are close-set, the center gore may sit too high.
Step-by-step fitting guide
- Measure your band size correctly: Wrap a measuring tape snugly around your ribcage just under your bust. Round up to the nearest even number. This is your band size. Common mistake: measuring too loosely leads to a band that rides up. Your band should feel firm but not dig in; you should be able to slide two fingers under it.
- Check cup depth with the scoop-and-swoop: Bend forward slightly and scoop all breast tissue from under your arms into the cup. The lace should lie flat against your skin without gaping or spilling. Common mistake: skipping this step often makes cups appear too large. If the lace wrinkles at the top, try a cup size down or a style with more projection.
- Adjust the straps for your frame: Shorten the straps until they sit firmly on your shoulders without digging in. The convertible design lets you cross them in back for extra security on narrow shoulders. Common mistake: leaving straps too loose causes the band to bear all the weight. Straps should stay in place without slipping; if they still slip, switch to a racerback configuration.
- Test the underwire position: The underwire should follow your breast root and lie flat against your sternum. It should not poke or lift away. Common mistake: a wire that sits on breast tissue means the cup is too small or the band is too loose. The center gore should touch your chest; if it floats, try a smaller band or larger cup.
Product spotlight
- Marissa: Lace balconette cups stretch comfortably over each breast; underwire lifts and separates without added padding. This design gives a natural, enhanced shape without extra bulk, ideal for petite busts that don't need padding.
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