The Best I've Used Yet
I have tried alot of packs over the years. Everything from Kelty at the begining, then moving on to Osprey and Gregory Packs, but this Arcteryx Naos is by far the best. First off the main compartment is totaly waterproof if you leave the port for the hydration tube closed, but if you leave the lid on and as long as you don't submerge the pack totaly under water it will keep everything absolutely dry. The zippered pockets are not totaly water tight, but as I said above it will handle everything but a total submerging in water. So leave that pack cover at home, and pray for rain. Another great thing is this pack won't absorb water into its fabric... thus it doesn't get heavier if it gets wet. This is the most comfertable pack I have ever worn. The key difference is the swivel waist belt. It makes for all the difference. The pack is free to move from side to side, but still be anchored to your waist. The material of this pack is super strong... and while I can't attest to it now, this pack seems like it will last a life time. The design is everything you need, and nothing you don't. Two lid pockets (one large, one small), two front zippered pockets (one large, one small), and the cavernous roll top main compartment.