Not shapewear but I bought some Maidenform leggings from Costco (cost way less than the website)
They roll down all the bloody while I wear as a legging under a tunic so like thick tights but TBH , I cannot be doing with the constant tugging them up. So I'll jave to wear them with knickers over the top a la Superman or wait till I've lost some belly (kind of defeats the purpose of them)
My favourite are Sainsburys (Apples and Pears depending if its belly or bum )
QVC do some Italian ones, they always say Buy the size you are not the size you want to be .