Late 60s Early 70s Flowered Organza & Chiffon Maxi Dress 60s Feather Trimmed Emerald Green Silk Chiffon Maxi Dress Hotbox Vintage Vintage 60's Turquoise Hawaiian Dress therapi Mock Neck Dress Order our Op Art Maxi Dress Dorothy Zudora 1960 1980 Costume for Women. The maxi length was introduced at the end of the sixties. The new floor length was not widely worn but became very popular in the seventies.