What to wear under strappy sundress?

[WonderWine]

I don't really 'do' dresses, but we're going somewhere hot and I've bought a couple of sundresses on impulse.
Not exactly this, but the same style/ lightweight cotton etc

Having tried them on I have no idea what to wear underneath!
I'm a size 12/14 with a 36C bra size so can't go braless, but anything else is going to show under the thin straps etc?
Do I go for a strapless bra, or a visible bralette/ crop top thingie?
Or some sort of 'secret support' slip thing (does this even exist?)

I'm not used to the idea of having just such a thin layer of fabric over me! 😧
Also feels really weird having such exposed legs. Do I need long chub-rub pants?

Advice and suggestions please!

Strapless bra might be best.
You might find chin rub pants hot or sweaty/restrictive? You’ll soon gets used to the thin fabric and might be glad of it in the heat, unless of course you can see your thong through it? LoL 🙄
Whatever you decide, you’ll look great. That style dress is so feminine and pretty.

Strapless bra or just normal bra and don’t worry about your straps showing (eg if the dress is dark use a bra with dark straps).

(I feel compelled to add that at a 12-14, you’re not likely to actually be 36C - have you tried a smaller back size and larger cup size a la “boob or bust” method? Likely to be worth trying especially if you are looking at strapless for good support).

Wouldn’t bother with shorts unless you get rubbing thighs - try wearing it around the house for a bit before holidays to work out what you need.

I feel compelled to add that at a 12-14, you’re not likely to actually be 36C - have you tried a smaller back size and larger cup size a la “boob or bust” method?

Funny you mention this as a few years ago I was measured and the assistant told me I was a 32DD and convinced me to buy a couple of bras in this size. They were honestly the worst fitting, most uncomfortable, tight bras I've ever had and I ditched them after a couple of wearings. Maybe I'm a 34D or something though?

l've given up with strapless bras, I've never found one comfortable that gives a nice shape. I now wear an ordinary bra with a pretty strap, in a contrasting colour to the dress and make an accessory of it 😆

If you're not used to wearing dresses in the heat, do try them out over the next few days. I suffer terribly with chubb rub and I'm not particularly chubby. I find the M&S shorts the best to wear.

PS. I also hate the 30D that is apparently my correct size.

I would just go bra less. I think it would look fine.

Braless definitely not an option - my breasts would hurt after a day of jiggling about.

I looked at the M&S shorts but they didn’t seem to be cotton-based and I can’t imagine having something synthetic in a hot temperature!

I am a 32H - so have to wear a bra, but also have lots and lots of strappy summer dresses. Just match or contrast your bra straps, it doesn't matter if they show. I do have a couple of dresses, even I can wear braless, but they have good support in of themselves.

No advice about chub rub though, not something I have ever had. But I wouldn't wear anything extra under a dress, the whole point is that you get extra air and waft up the skirt, so shouldn't be an issue??

The Rosie range in M&S does some lovely strapless bras and I've just bought one that actually does hold me really nicely. (38c). But to be honest I would probably just wear a normal bra with this sort of dress and just try to pick a colour that doesn't clash or have really thick straps.
I envy the posters above who think fresh air rules out the need for chub rub shorts. I can't wear dresses for any decent period of time without them and I've never found any of the creams, etc actually stop chafing. I would definitely get a pair of them and at worst, just keep them in your bag. If you feel you're starting to get chafing just pop them on in a loo.