The Kanken bag is durable and is made of Vinylon F, which is a fabric that dries quickly and resists humidity. This fabric is also extremely lightweight.

The bag comes in standard colors, which range from $60 to $75. You can also find limited edition versions of the Kanken that are designed by Swedish artists. They're made to last, and a portion of their proceeds will go toward the Arctic Fox Initiative.

The Fjallraven Kanken Fox backpack is a popular backpack among schoolchildren and adults. In fact, it was originally designed to prevent back pain in Swedish school children. Today, it's a staple in most schools in Sweden, and has helped straighten millions of backs around the world.