- Loose – will not squeeze the breast.
- Supportive – is rigid at the bottom and has support for the lower pole that holds the breast like a hammock.
- Thick Shoulder Straps – to hold and support the breast, not the thin sexy lace straps that tend to compress the upper part of the breast.
- No compression – sports bras tend to compress the breast, the bra should hold the breast up without compression.
- When worn, the bra should make transverse/horizontal wrinkles in the upper breast skin. (As demonstrated by the thin adhesive plastic strip in the photos below.)

Side view of breast relaxed and held up with a thin adhesive strip showing horizontal folds of the skin
Frontal view of breast relaxed and held up with a thin adhesive strip showing horizontal folds of the skin
Bra relaxed and held up with a thin adhesive strip showing horizontal folds of the skin