I'm usually size M, but everyone else suggested ordering one size down, I did (S), y/all this lil baby is snatching the crap outta my fatty waistline. Within one week, M (8-10) leggings only fit my butt & thighs meanwhile just sagging all round the waist. One month later, more of a coke bottle shape. Its not tight skin, yet, I must exercise for sure. She's Waisted is creating baddies!! I'm 5'3, 150lbs, 36/27/38.