Elegant fit and flare dress in soft brown with pleated patterned skirt.  The size and material tags are all in Japanese, so I don't know exactly what it's made of, but probably a polyester (chiffon-like).  There is an underskirt which acts as a slip.  Side zip on bodice.  According to an equivalency chart, 11AR is a US size 8, but please see specific sizes below:

All measurements taken with garment lying flat:

Bust—18” (from armpit seam to armpit seam)

Waist—15"

Hip--20"

Length—36.75"