I went to my physical medicine doctor's office wearing the weighted vest.

Amazon.com

he really liked how well it fits me and fully endorsed the kind of usage I have for it: going for a walk, walking on the treadmill, cooking. He even said wearing it while using the computer might be OK, but I do not plan to do that.

I am 5'5'' and weight slightly under 230 lbs and am not broad-shouldered. But I think for anyone interested in trying this vest, it is about buying it, trying it on and seeing if it fits, if you feel like it improves your posture (I get that subjective feeling), and if it appears to be snug.