Brand: Brand label missing
Color(s): green and white
Tag size: no tag size, estimate of modern L, go by measurements
Fabric/Care: Missing, most likely polyester and poly or acetate lining; Dry Clean

Vintage 70's. Sleeveless a-line formal dress features an empire waistline and detachable cape. Chiffon main with large scale floral print. Cape attaches with snaps in center front bust. 3D floral accent on bust. Full lined with zipper closure. Pre-owned vintage with a few minor stains and mild perspiration stains. Please see photos. 

Actual measurements flat then doubled: