The Tom Bihn Synapse 25 backpack: https://www.tombihn.com/collections/backpacks/products/synap... I went nomad earlier this year and decided I needed a good backpack. After much research, I landed on the Synapse. It's simply amazing that something as simple as "a bag" can be so well designed. So clearly better. It's the only product I've ever owned where I notice myself stop and admire it regularly.
They're so durable and timeless that I bet there are a lot of Bihn Bags out there from the George W Bush era whose washing instructions are once again relevant.
http://www.huffingtonpost.com/entry/washing-instructions-idi...
Wash with warm water.
Use mild soap.
Do not use bleach.
Do not dry in the dryer.
Do not iron.
We are sorry that our president is an idiot.
We did not vote for him.