Light blue midi sundress with open back

Beautiful baby blue crisp midi sundress - perfect dress for spring and summer. Flattering bodice and cross in the back. Has slightly lower cut in the back One tier in the skirt Not sure if material composition, but feels like a crisp cotton blend No brand or size tags as I purchased this from a consignment store while on vacation. Fits like XS (for reference, I’m 5’5” and 130 lbs with broader shoulder - I’m usually a size S and this is a tad too small for me; it zips up no problem, just slightly constricting). Excellent condition, looks like it’s never been worn. Creases and wrinkles from storage