Organization To Blow Your Mind! Vanquest Envoy 13 Messenger Bag - YouTube
Spyderco by Vanquest® Envoy-13 Messenger Bag - Spyderco, Inc.
Ok *not* a backpack, but I have several Vanquest bags. Took a shot on a messenger style as my recent edition. This is the Envoy-13 Gen 4. Got it to carry my