Another key metric is how comfortable the backpack feels when it's weighted down. If you need a backpack that's comfortable for long periods of time, look for those with wider shoulder straps and breathable backplates like the The North Face Borealis or Incase Icon.

The Kanken totepack is a versatile everyday backpack that can be used as a purse, shoulder bag, or backpack. It's a great choice for people who are looking for a simple, uncluttered bag that will last them a long time.

It's made with a water-resistant Vinylon fabric that repels moisture and expands when it gets wet. This makes the backpack highly resistant to light rain and also helps it keep your belongings safe from damp environments.