1. Breathable
Absorb sweat
3. No oppression
Second, it is recommended to wear a soft cotton bra. Because it has only a thin layer of cotton. Moreover, cotton itself has good air permeability and sweat absorption. And it doesn't deform, unlike molded cup bras, which will deform when worn for a long time. In addition, the soft cotton bra will not press the breast. It's comfortable to wear. As far as I know, there is an "Ishulani" that specializes in making soft cotton bras.
Third, it is also important to note that you should not wear a bra for more than 8 hours. Unbutton your bra after work and let your breasts move freely.