This Lagenlook and artsy style button loop military style jacket dress features a multiple button front closure, waist dart shaping, button cuffs, and a collar.  This item has no size or fabric type tag. Fabric feels like linen or flax, and buttons are like natural abalone, but that is just a guess.  Size is probably a Small based on measurements below.  Nice natural classic look to this cool jacket-dress which can stand alone or be layered. 

See images for details.

Feel free to message me with any questions, and thanks for looking!

Approx. measurements in inches:

Shoulder to shoulder: 15-1/2

Pit to pit: 20

Sleeve length from shoulder seam to cuff: 26

Center back length from collar bottom to hem: 35

Waist flat across: 17-1/4