The earliest men's bras were aimed at obese men. Its cup is flat, only the size of the bust, not as big as the cup.
Men's bras are very small. Such a bra can effectively prevent the spread of prickly heat. It can be seen that the unique "oppressive feeling" of the bra makes men feel special, and once they wear it, they can no longer live without it. Perhaps because of its popularity, there is a certain demand for men's bras in the market, and some big underwear manufacturers have also launched corresponding products.
With the development of products, men's bras are also specially designed for men with developed chest muscles. The seller thinks that men with well-developed chest muscles will face the same danger of chest expansion and distortion as women. But opponents say that only exercise can bring tighter muscles.