What is my bra size? Andrea October 20, 2019 12:32 Updated To choose the right bra size look at the size guide to check the back and chest measurements corresponding to each size. Choose the closest size to your measurements. Related articles I don't have my tracking number: What size panties do I have? Lingerie Glossary Size Chart: Bras, Panties and Bodyshapers Would you like to call our Contact Center?