The essential Speed Backpack.
Most days you carry the same few things: laptop, charger, keys, maybe a book. The rest comes along just in case, and just in case gets heavy by the afternoon.
The Vector is made for those days. Same two patents as every Speed Backpack, without the room you were carrying empty. By six p.m., your shoulders notice.
For people who figured out a long time ago that carrying more never made a day easier.
In military-grade ballistic nylon: a weave engineered against abrasion and friction, which is the technical way of saying you never have to be careful with it.