As a part of the bra, the steel ring exists to make the breasts more stable. Therefore, in the early days of the birth of the steel ring, it is relatively hard, which will cause certain oppression to the body and is not conducive to blood circulation. In order to improve the discomfort caused by steel rings, soon, soft steel rings appeared, which greatly improved the comfort while maintaining good wearing effect.
And new technologies always refresh people's physical and mental feelings. The patented technology without rims can keep the straight effect, but also make people enjoy the feeling of zero restraint without rims. The widespread use of non-steel rings, such as "long-term wear will blur the edge of the breast", has also been controversial, but it has not been verified.