My sis has taken to pairing a tan canvas messenger bag, slung loosely across her torso, with some of her outfits. I was kind of apprehensive initially as it isn’t an obviously fashionable or stylish item. However, it looks surprisingly good on her and provides suitable contrast to feminine clothes. Then I spied backpacks in similar material at Topshop and Jcrew. I think such bags function like a parka, adding a touch of utilitarian chic and steering away from overt prettiness.