From http://www.sewaholicpatterns.com/:
A modern interpretation of the classic bow blouse!
The Oakridge Blouse is a fitted blouse with buttons down the front and a shaped hemline. Your choice of a beautiful bias bow collar, or a sleek collarless version. Choose contrast fabric for the bow so it stands out!
Both versions feature front darts for subtle shaping, and long sleeves with plackets and cuffs. This blouse sews up beautifully in fabrics with drape, such as rayon challis, crepe de chine or silk charmeuse.
Sizing is proportioned for a pear-shaped figure: smaller bust and waist, larger hips.