It could pass for vintage, but this is a new design from Paul Smith Junior, specifically the Ditsy daisy print dress.
Taking inspiration from the 1960s, this shift-style dress has a single pleat on the front, pink and purple piping on the neck and sleeves, a concealed zip fastening on the back and a small navy bow is sewn on the side seam.
Of course, the star of the show is the floral daisy print, which is full lined. It retails for £82.