The idea that summer dresses are “meant” to be worn without a bra is more of a style preference than a rule. Summer fashion leans toward lightweight fabrics, relaxed fits, and breathable designs, which can make going without structured undergarments feel more comfortable for some people. Flowy silhouettes, lined bodices, or dresses with built-in support often reduce the need for a traditional bra, contributing to that association.

At the same time, personal comfort plays a major role. Many people still prefer the support, shaping, or coverage that a bra provides, regardless of the season. Options like bralettes, strapless styles, or adhesive solutions can work well with summer outfits, especially when dealing with backless or thin-strap designs. The choice often depends on the specific dress and how it fits the body.

Design details also influence the decision. Sheer fabrics, low backs, or fitted cuts may lead someone to choose additional support or coverage, while looser styles may not require it. Practical factors—such as daily activity, weather, and setting—can also affect what feels most comfortable and appropriate.

Ultimately, there isn’t a single “correct” way to wear a summer dress. Fashion is increasingly centered around flexibility and personal expression, and that includes undergarment choices. Whether someone opts to wear a bra or not comes down to what makes them feel confident, comfortable, and suited to the occasion.