I bought this lovely midi dress from ASOS last year when I needed something to wear to my sister’s graduation. It has a knee-length slip with a chiffon overlay – and gathered waist. I love the colour too.
This sort of dress is perfect for a summer occasion with a more formal dress code – the chiffon layer is so light that you won’t overheat in it, but it’s still a bit flirty and fun. I wore it with nude heels and the clutch shown above (both from Dorothy Perkins).
Unfortunately this exact design is no longer available on ASOS but they do have an almost identical dress available.