It stretches but only a little, if you are a size M I recommend choosing an S, it fit me perfectly and my boyfriend loved it, I'm ready to go to the beach.

This dress runs true to size; I usually wear a medium but got an XL, and it has a lot of room. I'm having it taken in so it'll fit perfectly. The bright orangish-red color is vibrant and perfect for vacation vibes. Overall, a great pick for those sunny getaways!