I would go with the medium. I found they run a lil big.

Pauline may I asked you is your body,, type Apple,, pear,, it depends..

For sure order a size smaller than usual... I love the dresses from Venus ♡

I think we are all in agreement that items run a bit big, but personally I think they are pretty close to true size.

This summer I ordered a dress the size I usually wear, a 6. When it arrived, it was too big so I sent it back and wanted to exchange it for a size 4. They were out of the size 4, so I ordered a two which is much smaller than what I typically wear. However, when it arrived, it fit. A little more snug and some places than I would prefer, but it fit comfortably enough and well enough to wear to my event.

I agree about the sizes running a tad on the big side... I would order a size up. Good luck! :)) )

I normally wear a small elsewhere and here I wear an xs. I think they run a bit big

They're generally pretty true to size.