When we see you in your wedding dress we will be able to advise you on exactly what to wear.
If you are struggling at all, the key things that we suggest you remember are:
Always go for a bigger size for your knickers. You want them to smooth out your figure and not create any lines.
Opt for nude, not white. You want to try to match your skin tone, not your wedding dress.
99% of the time we advise against wearing Spanx or other types of shapewear. Sometimes these might work but other times they distort your body shape and work against the natural shape of your wedding dress.