I went bra free all last week while hubby was gone and discovered that the L4 and L5 area of my back lacked the pain I usually have. Not to mention a clavicle I injured 9 years ago. Seems weird that I would not have the lower back pain with a strap setting so far away but I wore a bra the last 2 days and I've had a lot of stress in my back. Thanks for the all resources Wombat and Monica for opening us up to the idea. By the way, I'm a c/d cup.