I'm 5'6'' and about 165lbs, 1 have a physical job so I don't think I'll be able to get to far below 160lbs. My measurements without forms/padding are 37.5-29.5-38 and with all the extras 39-29-39.5. My bust measurement changes based on my form size, but I try to balance out not going bigger then 40.5. I only wear my bigger forms when I feel that my shoulders or back look too big for my liking.