Strapless shapewear - help!

[TheSnowFairy]

Am new to S&B but not MN - but need help!

I have a wedding to go to in August and have just bought this.

What strapless shapewear is best? Am not busty but have a tummy and hips so want something to push out the top half and pull in the bottom half, preferably non gusset.

TIA

I've got that dress! Fab isn't it? Can't help with shape wear though...

Yes, am so pleased with it - I never wear dresses but it is lovely!

Definitely needs shapewear for me though