J.Crew cotton "Poplin Apron Dress", in dark navy blue. Peekaboo lower back, low back zip closure, and buttons on the top of the shoulder. Front patch pockets. Tagged as a 6, measures 37/30/45". I wear a 6 in most mainstream brands, and it was definitely way too big in the bust for me. 44" long. Like-new condition! (B5)