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DATE: May 7, 2026 at 02:00PM SOURCE: PSYPOST.ORG

TITLE: New study sheds light on how going braless alters public perceptions of a woman

URL: https://www.psypost.org/new-study-sheds-light-on-how-going-braless-alters-public-perceptions-of-a-woman/

A recent study published in Frontiers in Psychology suggests that a woman’s decision to wear a bra involves a strategic trade-off between signaling physical attractiveness and avoiding negative social judgments. Scientists found that while going braless tends to be viewed as highly attractive by both men and women, it also provides evidence of being perceived as a sign of sexual availability. This perception of availability appears to increase the fear of harassment among women, shaping their daily clothing choices.

Scientists conducted this study to understand the evolutionary and social factors driving everyday clothing choices. From an evolutionary perspective, clothing acts as a tool for self-promotion, helping individuals enhance their physical appeal to potential romantic partners. At the same time, clothing serves to conceal intimate body parts, which can signal sexual restrictiveness and relationship fidelity.

The authors explain that human males naturally prefer female breasts of average or above-average size and high firmness. One evolutionary theory suggests that after early humans began walking upright on two legs, protruding breasts gained visual importance. Another theory proposes that breast firmness serves as an honest indicator of a woman’s health and metabolic resources.

The authors wanted to see how the specific choice of wearing or not wearing a bra fits into this evolutionary balance. Going without a bra can increase sexual attractiveness by making the breasts and nipples more visible to observers. On the other hand, wearing a bra can improve the visual firmness of the breasts. This creates a strong biological signal of youth and fertility, which can elicit a powerful response from potential partners.

To explore these dynamics, the researchers recruited 686 heterosexual adults from Slovakia. The sample included 409 women and 277 men, with an average age of about 35 years. The scientists used social networking sites to distribute their survey and asked participants to invite their acquaintances to join.

The authors asked the female participants detailed questions about their bra-wearing habits in both public and private settings. The researchers also measured various psychological and physical traits in the female participants. These included self-esteem, breast size, breast shape, media exposure, and fear of sexual harassment.

They also measured sociosexuality among the participants. This psychological concept refers to a person’s willingness to engage in casual sex without a committed emotional relationship. Additionally, the researchers asked participants about their pornography consumption, as this media can influence sexual expectations.

In a separate task, the 277 men and a subgroup of 158 women viewed ten pairs of photographs showing women’s torsos. Each pair featured the same woman wearing a white shirt, once with a bra and once without a bra. The participants had to choose which image in each pair looked more sexually attractive. They also had to choose which image suggested greater relationship fidelity.

The findings revealed that women rarely go braless in public. About 78.5 percent of the female participants reported they wear a bra almost every time they go out. In private settings, the behavior was much more evenly split, meaning women feel much more comfortable skipping a bra at home.

Women who reported having smaller, firmer breasts were more likely to go braless in public. The authors noted that firmer breasts tend to serve as an evolutionary signal of youth and fertility. This suggests these women may feel less need for the artificial enhancement that a bra provides. Women with silicone breast implants were also more likely to go braless, likely because implants increase both size and firmness.

Interestingly, a woman’s openness to casual sex did not predict her bra-wearing habits. Instead, the fear of sexual harassment played a major role in these decisions. Women who expressed a higher fear of being harassed were significantly more likely to wear a bra in public. This suggests that women intuitively use clothing to protect themselves from unwanted attention.

When evaluating the photographs, both men and women consistently rated the braless images as more sexually attractive. However, both genders also rated the braless women as less likely to be faithful to a partner. Men who had a stronger personal preference for large breasts found the braless photos especially attractive.

The researchers also found that men who reported an intention to sexually harass women were highly sensitive to the braless photos. These men tended to view the lack of a bra primarily as a cue of infidelity and sexual exploitability. The authors suggest this aligns with evolutionary ideas about male sexual jealousy, where certain men interpret provocative clothing as a sign of a woman’s willingness to cheat.

This new data aligns with previous research on how society views women’s bodies and clothing choices. For example, a study published in the journal Sexuality and Culture examined attitudes toward female toplessness in public. The researchers asked 326 residents of the United States to rate images of topless women in various public settings, like a beach or a park.

The authors of that paper found that a person’s individual traits drove their reactions, rather than the location of the photograph. Interestingly, women actually rated the photos of topless women more negatively than men did. The authors suggested that sexually objectifying environments encourage competition among women. This concept, known as intrasexual competition, prompts individuals to socially police their rivals.

Similarly, research published in the European Journal of Social Psychology provides evidence that people judge women’s bodies through a strict moral lens. In that study of 470 participants, scientists found that behaviors like being topless or getting a tattoo are viewed as moral issues for women, but not for men. When participants were asked to explain their opposition to female toplessness, they spontaneously used arguments about harm and purity.

This double standard highlights how society places heavier burdens on female bodily autonomy. The researchers found that people with sexist beliefs were especially likely to use concepts like purity to oppose female toplessness. This form of prejudice, known as benevolent sexism, idealizes women as pure beings who need protection. This mindset helps explain why society places stricter controls and judgments on women’s bodies compared to men’s bodies.

Other research has focused specifically on the biological signals associated with not wearing a bra, such as nipple visibility. A study in the journal Evolutionary Behavioral Sciences involving 234 participants explored how people react to photographs of women with visibly erect nipples. The findings suggest that this involuntary physical response triggers immediate sexualization and objectification by observers.

The scientists found that women with visibly erect nipples were perceived as less intelligent, less moral, and more promiscuous than women without visible nipple erection. Female participants in that study rated the women with visible nipples as having lower quality relationships. Men in that study expressed a desire to interact with these women, while female participants expressed a desire to avoid them. This further supports the idea that prominent breast signals carry significant social and reputational costs for women.

While these studies offer fascinating insights, the authors of the bra-wearing research note a few limitations to their work. The study relies heavily on self-reported data for bra-wearing frequency and media exposure. This method can be influenced by a desire to appear socially acceptable, meaning people might not accurately report their daily habits.

The study also frames clothing choices primarily through an evolutionary lens. This approach might overlook the strong influence of modern cultural norms, personal comfort, and fashion trends. Future research could use more objective methods, such as daily diaries, to track clothing habits in real time. Scientists also recommend cross-cultural studies to see how different societal rules interact with these evolved sexual signals.

The study, “Women’s and men’s perceptions of (not) wearing a bra in public,” was authored by Pavol Prokop, Ivana Tomanová Čergeťová, and Jozef Balcerčík.

URL: https://www.psypost.org/new-study-sheds-light-on-how-going-braless-alters-public-perceptions-of-a-woman/

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