Combined with longer head-tubes, taller stack heights, stem spacers, and longer axle-to-crown fork measurements, riser bars push the grips up and back where you want them for an intense decline
Considering the fact that the AirSpeed suspension holds the packs weight off your back, I found it pretty stable, not tending to shift, even when scrambling up wet, slick limestone and short, third-class sections on an off-trail hike up Death Valleys Surprise Canyon
Many nylon and polyester bags can be gently cleaned with soap and water
So, get a bag with a large, sealed compartment or removable lightweight cooler with enough space
Now combine all this with slash-proof materials, lockable zippers, and even RFID protection, and you have a pack that gives you the best of both worlds