If you're looking for a new backpack, there are a few things you should keep in mind. Fjallraven doesn't break out its sales data, but its Kanken backpack is one of its most popular ambassadors. It can be seen on hiking trails, college campuses, and hostels. The Kanken is available in over 30 different colors, and its boxy shape makes it one of the most iconic bags in the company. It also garners...