Learn about Sister Sizing and More! Knowing Your Bra Sister Size Have you ever been bra shopping and just can't find that perfect one in your size? Sister sizing can be especially helpful in aiding your search for that perfect fit. Whether its the band or cup size, finding your unique shape can be stressful. With Sister Sizing, using small adjustments, you can find a bra to hug your curves like never before. Having the right size bra is more important than most people realize. it can help support and ease back pain, and it can give you that confidence boost to have you feeling your most authentic, beautiful self. How To Find Your Sister Size First thing's first, you need to find your bra size using our Bra Calculator. After you have found that, you can choose to adjust up or down, depending on your preferred fit. If you choose to...