Bras leave dents when a bra's band is too loose or cups are too small, forcing narrow straps to bear the weight and creating focused pressure points on shoulders and skin.
Body factors like fluid retention during PMS, excessive heat, or long days on your feet can make compression lines more visible, and friction combined with moisture under the bust can inflame skin and leave redness along bra lines.
To fix this, make sure your band is sitting level and firm around your ribs and look for bras with wide, supportive straps that distribute weight across a larger surface area rather than concentrating force on small contact points.
For a totally smooth, dent-free bra experience, check out the SoftForm Bra.