Ignoring misfitting undergarments is one of the biggestbra mistakes you probably didn’t know you were making.

Determining whether your bra fits or not can be more difficult than you thought.

PerCosmopolitan, slipping bra straps are not a good sign.

Woman wearing a bra

“Has your strap been slipping all day?”

asked Ra’el Cohen, the chief creative officer of ThirdLove.

Go down a cup size for the best fit.

Woman adjusting bra straps

Bra