Size 1X from spanx. From their size chart: 1X 18 - 20 waist: 39.5 - 42 hips:46 - 49.5 HOWEVER, I would say this are better for size 14-16. I’m a pretty solid 14/16W and these fit me and suck me in. Details These wide-leg jeans from Spanx feature elongating seams at the front. Five-pocket style Belt loops Faux fly 91% cotton/7% polyester/2% Lycra® spandex Lining: 70% polyester/30% cotton Machine wash Imported SIZE & FIT Regular inseam, about 34"