Purple & Gold Rayon Shift Dress Sm? Med? lightweight sleeveless made in Thailand

Unbranded - made in Thailand Purple & Gold Rayon Shift Dress size small/medium ? no size tag, see measurements below the chest measurement is wide enough to fit Medium or Large, but the sleeve openings are small. lightweight sleeveless flared hi-lo maxi dress great for those hot summer days even as a swim cover bright purple with printed designs in yellow-orange gold mandala polka dot design diagonal paisley geometric design across the left top and right bottom scooped V-neck rounded hemline, higher on the sides than front or back Pre-loved; EUC, excellent used condition 100% Rayon machine washable air dry approximate measurements taken while laying flat: chest 20" length 39" sleeve opening 6.5" - 7" skirt flare 46" (see pics) questions? please ask!