These garments are sized and graded for compression purposes, so they are designed to fit snug in order to compress and flatten. Do not intentionally go down in size; you will not be able to put the binder on. Remember, you should be able to breathe without trouble. Your binder should not be causing you excessive discomfort or digging into your skin. If you experience any of these, you probably have the wrong size!
If you are in between sizes we encourage you to consider your shoulder measurements; If you have broader shoulders, definitely go with the larger size.
Oh, and don't worry! If you aren't so confident in sizing yourself, do not hesitate to shoot us an email at firstname.lastname@example.org . <3