The patterns for this Butterick B6250 Copyright McCALL’S® Company, NY pattern are:
JACKET, COAT AND WRAP-UP CLOTHING (WOMEN'S JACKET): Unlined jacket, coat and wrap-around garment. A, B: Very loose, front forming the collar, low armhole, side pockets. C: Pockets. C, D: Braid purchased. C, D: Snap button closure.  Created for light to medium weight woven fabrics. 
You can use materials like:
FABRICS: Felted wool, Tweed, Wool canvases. Large diagonals are not suitable. *With Sense. **Without Sense.
Size guides can be found in “affiliation”