This is a fab 70s vintage shirt style dress.

It is made of polyester and features a wavey pattern in blue, white and a light faun colour. The blue is a little more like aqua blue than in the pics.

There are buttons down to the waist which is elasticated. The skirt is lined.

I believe it would suit a size 16 or possibly a size 14 - 16 with a looser fit. Please check these measurements:

Chest 41"
Waist 29" - 38"
Hips 47"
Shoulder to shoulder 16.5"
Shoulder to bottom hem 48"

It is in good condition with some light wear.