Shapewear for under satin dress?

[OrlandointheWilderness]

As title - size 16, dress is strapless with a fitted bodice but I need some shape wear! Any recommendations for reasonably priced wear?

Have you looked at M&S online (rather than hoping for the best in store)? If they have nothing take a look at

Skims

Selfridges has a good selection online.

Ah thank you