Blue clover coveralls from an online Australian brand called Gorman.

I’ve never worn these before because they are too small on me. I meant to return them but it slipped my mind. The coveralls have a zipper and button on the side of the item to take on and off. There are buttons on the back of the piece that hold the straps. The material is a linen. They look great with a turtleneck underneath them as the girl in the photo is wearing.