Unknown design, size, and material (all tags have been removed). Size is a guess based on how it fits me. I am generally a M-L in maxi tubes, and this one fits me just right. Beautiful floral pattern. Volumptously soft yet lightweight. Ruched elastic chest. Empire waist. Elastic has loosened a bit with age, but the dress stays up without any issues. Bust: 14.5 inches Waist: 13.25 inches Length (shoulder to hem): 46.5 inches Length (waist to hem): 41.25 inches