Here is a stylish and timeless short sleeve dress by Nikki. Feels like mostly or all polyester. Perfect green fabric with dark blue accents, and a hidden white stripe tucked away on the outside of each sleeve. Matching dark blue cloth belt. Fairly light weight, fairly sheer, soft, and comfy. It's in amazing shape and has years of life left. The tag says size 15/16, but here are the exact measurements. (be sure to reference the last photo to see how I measure dresses)

Here are the measurements laying flat:

Bust 21"
Waist 13" (elastic here stretches to about 21")
Hips 25"
Sleeve 10"
Length 45"

This item is sold from a vintage boutique in Roanoke, VA.