有众多胸罩设计款式适用于各种商业和社会环境，胸罩间的形状、尺寸、功能、合身度、时尚性、面料和颜色也有很大的不同。某些款式会起到基本、实际上的支撑和覆盖作用，而有些则设计成有故意性、感性或是发人深省。制造商对胸罩的设计和风格会不断变化，对胸罩也没有标准化的分类系统，包括下列款式及连体内衣、加大型胸罩、复古胸罩、皮革胸罩、肚皮舞胸罩在内的胸罩，均采用各式各样的设计。许多胸罩履行的目的不止一个，就如以极薄的材料制成的平台式胸罩。

另有男士胸罩。

There are a great many brassiere designs that are suitable for a wide variety of business and social settings and suitable to wear with a variety of outer clothing. The bra's shape, coverage, functionality, fit, fashion, fabric, and colour can vary widely. Some bras are designed to offer basic, practical support and coverage while others are purposefully sexual, sensual, or revealing.