The straps are made of high-quality nylon, and they are adjustable to fit most users. You can snap them together for a compact bag. They are also easy to wash. Just make sure to do it in the shade, and don't soak them in the dishwasher.
Kanken sling
Another cool feature of the Kanken is the top handles. Two of them can be snapped together to make a mini backpack that you can easily put on your back.

The Kanken is a little bit of a hybrid, in that it can be used as a backpack or a tote. It has a front pocket that's good for storing forest finds or your phone.