How To Measure Bra Size

Stand with arms down, have someone measure under your bust, ensuring a straight and snug fit. Do this without a bra or, if wearing one, avoid tape overlap. This is going to be your UNDERBUST measurement.

Measure around the fullest part of your bust while wearing a bra. Keep the tape straight across your back and parallel to the floor. This is going to be your OVERBUST measurement.