From http://www.burdastyle.com/:
"A bias cut, cowl neckline and small waist gathers all work together to make the tweed fabric appear as light as a feather."
BurdaStyle 2012 10 116, 117, and 118B are all blouse variants of this pattern. In 116 and 117, the neck cowl is stitched down into an asymmetric fold.