Vintage Zara floral blue and white button down strap sundress size small floral

Vintage Zara floral blue and white button down strap sundress size small. I can tell it’s a discontinued style because of the tag style. Size small to medium—has a stretchy back. Laid flat measurements are 32-25/26-free hips. Adjustable straps. Unfortunately a little too big for me. Great pattern and perfect for a picnic. There is a pale yellow stain at the right bust area that I cannot remove but it’s quite pale. Reasonable offers accepted!