Elegant Tshirt by Massimo Dutti with navy/beige stripes. Decorative buttons on the shoulders to keep up the sleeves, gives a feminine look. On the front there’s two tiny holes.
The size says XL/36 which I believe to be an error. I personally feel it’s more between a M (45cm under the armpits, 43cm at the waist and 48cm around the hips).
Fabric feels like 97% cotton and 3% elastane.