“I'm 5'9"/165 lb. AFAB athletic build and measure a M/L band. Usually, I'm constantly rearranging myself in a L because the front is loose and the band moves a bit too much. Went with M because of the band closure on this- it's perfect and lays flat. Straps are solid and don't dig, and front length is great (for me) - longer than average and no visible cleavage. Good compression for anything active. BIG issue is the cut of front/arm holes. It created big bulges, so the bra looked terrible no matter what and made upper body movements very uncomfortable even though the overall fit was great.”