Abstract: A brassiere steel ring having an irregular cross section that is comfortable to wear and has a long life is provided. The steel ring has an overall arc shape comprising an arc-shaped inner edge and an arc-shaped outer edge. A reduced neck section is provided in the middle part of the cross section of the steel ring. The reduced neck section divides the cross section of the steel ring into a upper section and a lower section, and has a width smaller than those of the upper section and the lower section. The upper section forms the arc-shaped inner edge of the steel ring, and the lower section forms the arc-shaped outer edge of the steel ring. By this way, the anti-fatigue ability of the steel ring will not be decreased when its cross section is enlarged, which increases the life of the steel ring.

Abstract: The utility model relates to the field of women's underwear. The technical problem solved by the utility model is to provide a comfortable arc-shaped underwire with simple structure. The arc-shaped underwire, which is embedded in the lower edge of a bra cup for supporting, the underwire is arc-shaped as a whole and is provided with an inner and outer end that respectively faces and deviates from the middle part of the bra, characterized in that at least one end of the outer and inner end deflects in a direction deviating from the body. This structure is different from the traditional one extending upwards which means the end of the underwire maintains a certain gap with the body to ensure that it would not press the users. The structure is comfortable to use.