Oh My Gauze pink tie dye asymmetrical ruffle hem dress lagenlook 100 percent cotton size 1 which according to Oh My gauze online size chart is a S/M (6-10). The mannequin is a small and I think this fit it perfectly so depending on how you want it to fit perhaps a medium could work but I think it would fit a bit more tight . For a more lagenlook small size in my opinion. Flat lay measurements: armpit to armpit ~21" From top of shoulder to a shortest hem ~31" sleeve : From collar to cuff ~ 16" please see above photos for what was measured. Questions are always welcome . nice easy summer dress