Hoss Intropia - sheer drop waist printed vintage inspired midi dress

EUC US8 - euro size 38 - Mannequin is 36B/C bust with a 26” waist - so a solid US8 or Medium Cream flowers printed on sheer grey. Sleeveless fitted drop waist dress with long side zipper. Round neck and functional buttons down back. Full gathered skirt. No slip. No care label - sorry and internet was no help. I think a viscose/polyester? D0603