From TheCraftOfClothes Etsy store:
The Tie Front Top is a zero waste pattern cut from an exact square of fabric. The body hangs on the bias, as do the pretty petal sleeves and tie bow. There are no fastenings; the top pulls on over the head.
This pattern was originally published in the book Zero Waste Sewing, in sizes 8-16 only. This new revision extends to 20 sizes, to fit from a 32"/81cm bust to a 70"/178cm.
It's designed for woven fabrics. Suitable fabrics include lightweight stable cotton, Liberty lawn, silk and linen in plains, stripes or patterns. The top looks beautiful in fluid fabrics too, such as tencel, silk satin or viscose. The only notion required is thread.