NWT Bird & Knoll Dress

Beautiful Bird & Knoll size medium maxi dress. Flowy confetti type of print on navy background. I searched, but did not find a tag with fabric description. I believe the dress may be 100% cotton. There is lining in bodice/upper 1/2 of dress. Dress does have pockets with center back invisible zipper. The strap can be adjusted as it has loops and button to lengthen or shorten as needed. Flat measurements are approximate: Pit to pit 12.5" Center front to hem 38.5" Center back to hem 34" Strap 17"