Floral Mudd Romper

I bought this floral Mudd Romper from another Poshmark seller and it doesn't fit! The tag reads XL but I would say it fits more like a medium or large. I typically wear XL and I could barely get it on. Comment on the post if you'd like specific measurements. It is made of a soft and breathable fabric and has a beautiful fall like pattern. It is a little sheer so I would wear a nude bra and underwear with it. It has spaghetti straps with a mid length sleeve attached. there is elastic around the waist and a cute yarn ball design on the bottoms. The in seam on the bottoms are about 2 inches, very small, but it's super cute! would go great with knee-length boots (I have a pair in my closet, size 7, that would work great with it!) and a fall colored cardigan!