Vintage Blassport button down sleeveless long maxi dress bright peacock blue

Vintage Blassport Beautiful bright peacock blue/teal color Sleeveless Button down Collar Slits up the side Long maxi length Double breast pockets Excellent used condition all measurements are approximate Size not listed see measurements would fit approximate size medium Bust 20” Waist 19” Length 52” Slits 16” My guess on fabric content is cotton maybe with some linen. No stretch in the fabric. It’s a thicker heavier weight