Banana Republic sleeveless tunic blouse NWOT

100% triacetate woven sleeveless blouse, tunic length but very large side vents starting at waist seam (see last photo), bodice is fully lined, pullover style with button closure at center back neck, color is white (but not bright white), never worn NWOT, size S Length HPS 31” Waist seam placement 16.25” down from HPS Side vent heights 14.75” Bust/chest 35”