SHAPERXWomen's Shapewear Bodysuit Tummy Control Body Shaper Seamless Sculpting Snatched Waist Body Suit

I wear a size 14/16 or xl/xxl; what size would be best?

I am 5' & 185lbs should I get a large?

How supportive is the bra ?

Does anyone actually own skims to verify how good of a dupe this is? am thinking about buying but don't want to be disappointed