Push-Up Bras pushes your breasts upwards and together, creating firm and rounded cleavage. - A push-up bra will usually contain padding in the bottom of the cups, which will push your breasts upwards, creating a curve to your breast and great cleavage! - These bras are usually combined with a plunge style, which means your breasts are pushed upwards and together, which creates a rounded effect. - These will increase the appearance of your size, but won’t necessarily increase the volume of your breasts, unless your push-up has additional exterior padding. - Ideal for firm, smaller breasts, but take care if your breasts are not as firm as they once were, as this style can make them look more wobbly!