The white jacket with black braid is a Chanel signature. There have been many variations of this cardigan-jacket. This year, the idea has been used for a white short sleeve trapeze dress at Chanel 2014-2015 Fall-Winter Couture Fashion Show. There is a grey vertical line in the middle of the dress. Other horizontal lines emphasize the high waist, borders and pockets. The result is a geometric and minimalist dress that I would gladly wear.
You can see all the pictures of this Fashion Show on Style website.