I’m 26y/o, 5’3, 129lbs, 29”-ish waist, size 7/8 jeans (sometimes 9), 34D/32DD bra (38” bust), M in most tops & bottoms, 39” hips. I have been on a weight loss journey so unsure of my exact sizes per material so take this w a grain of salt. I got a L bc ik Halloween costumes tend to run small. it fits like a glove! it’s a thinner “leather” material but really soft and stretchy. I was worried about the bust area but it fits just like the pic. I’ll prob have to double tape that area just in case tho. when bending over in this costume the girls sorta fall if u know what I’m saying. only issue is the wrist cuffs are HUGE! I don’t know anyone with wrists that big, it could fit my calves. I’ll have to alter those but everything else is great! since I got an L and my usual size is M it may be best to size up 1!