This garment is consistent with the distinctive "Lagenlook" aesthetic, vintage look. 

This piece is a linen smock or henley top featuring several of the brand's signature design elements:

Material: European linen or cotton with a visible, textured weave.

Details: A crochet or eyelet lace neckline, a buttoned henley-style placket, and gathered fabric that creates a voluminous, oversized silhouette.

Finish: "Hand-distressed" details, including raw, frayed hems and a deliberately aged appearance. This smock is very full and the sleeves reach to the elbow and/or three quarter sleeves with a button on each sleeve.  There are slits on both sides of the blouse.  This 100%  linen top is a bit thicker than regular, lightweight linen.  This a beautifully crafted smock that pairs with most everything.  A rare top that is no longer available through MP.