💙🤍💙Free People chevron dress knit medium grey blue cream tunic Rhiannon

I just bought this beautiful dress from an awesome seller, but it’s a little too small for me. I need to find the large. The under arm to under arm is 20 1/2 inches and the length is 34 inches. The hips are about 23 inches. The dress is very stretchyand super cute. It does come with a slip. The sleeves have a zip detail.