I remember when I first saw a Herschel book bag, I fell in love. The throwback design with the two long straps was like that of backpacking bags. They have branched out into duffel bags and all sorts of other travel luggage. They have become a household name in the fashion/luggage department. I don't think they have an online store, but you can most definitely get their bags at different locations, such as Urban Outfitters or even online at Hypebeast via their online store.