Zara red linen-blend dress

Red button-down linen-blend dress by Zara. Smocked at the back. Ruffle along the bottom hem. *Fabric tag is missing, but it's 50% linen 50% cotton. Armpit to armpit is 16.5" unstretched, 13.5" across the waist, shoulder to hem is 32.5" long. Tagged size M, but made small so listing as size S, PLEASE REFER TO THE ACTUAL MEASUREMENTS TO BE SURE OF FIT. Excellent condition