They are amazing backpacks. My last one was the perfect pack whether going through airports or deep inside the jungle or desert. I had it for six years, and I used it every day in Namibia, India, Kenya, USA, Nepal, and the Amazon.
It is jammed pack full with well thought out features. An example is the intermal mesh puches for valuables and a lanyard with a clip, that slips into an internal pouch. The first thing I do with car keys is to clip them on, that way there is no chance they will get lost whilt out and about.
Its easy to customise, an in true tracker stlye I have customised it with Maxpedtion Cocoons, which are shoulder mounted for easy access to kit while on the hoof. I have customised it to give access to trail markers, track pack, latex gloves, GPS and Easy Id Cards withoo
The Shadowhawk tracking instructors are big fans of Maxpedition kit, incuding the Falcon, that they have customised in their own style.