To properly measure your upper chest, stand in front of your mirror topless (with or without a bra) and with the tape measure high around the upper back and under your arms, pull the tape measure TIGHT above your breasts at the top of your cleavage.
Shapeez size is
Need more help with sizing? Email our fit specialist CustomerService@shapeez.com
It's very comfortable and I am not constantly pulling up straps or pulling down the band.
For years I was wearing the incorrect size in the Ultimate bra. When I consulted with Shapeez, the company itself, and discovered what my correct size should be, I ordered several and they fit to perfection. Hallelujah!! I don't even know I have it on ... and it does wonders not only for my back but my stomach, too.
It was easier to put on than I thought it would be. The sizing was spot on. I really like it.