best spanks to hold in your stomach?

I have a mermaid style dress. Are there any spanks that are really good at flattening your stomach? any advice?

I have a mermaid as well. I have a stomach too. Oh well. I purchased the Slim Cognito and LOVE it. It's a bitch to put on, but that sucker works.

where do you get the slim cognito? and how much?

i'm interested too.

I purchased mine from Lane Bryant because I am a plus sized girl, but you can buy them from Nordstroms and also the Spanx.com website. They are $72.00

I like any of the ones that are like panty hose.  I have a few pairs of the Power Panties and those are my go-tos.

The ones I own that are like a shiny spandex don't really do anything for me.

I wore the Spanx High-Waisted Power Panties. I think they are the best as I bought and tried others that just didn't do the job.

this is great ladies.  I have a question though.  Are there any spanx that aren't a female dog to take off?  I mean that seriously.  I'm planning on drinking at my wedding and i know that when i open the flood gates so to speak, i will need to go a lot.  Did you guys just chuck them at a certain point in the wedding or are there a pair that just cover the belly portion?

I tried soOoo many from JCPenney's, Nordstroms, Kohls, Sears, etc.

The best by far is found at Sears. Dr Rey's shapewear..step in.  Goes from high waist and covers your thighs...love that material is thin, so you don't feel bulkiness added..and it takes extra inches off you that the SPANX won't.

I got mine for like $25?

I used the Hide and Sleek slip under my dress and it worked really well.  My seamstress recommended that I get a slip so that my dress wouldn't end up between my legs, for lack of a better description.  LOL.  Bonus: it's pretty easy to use the bathroom in it since you don't have to pull it off!  The Power Panties are also great.