Need some shape wear to wear under work dresses, am a size 8-10 and 5"3, I've looked online and am so confused, the ones with legs bits (half way down thigh) will be to long on my 27" legs 
I would like a bit of a bum lift as well. They are pretty pricey so don't want to make a mistake as I've heard you can't return them? The only one I had before, dug in and rolled up/down which showed under my clothes.
TIA