uhh... a backpacking backpack. Osprey, Kelty, REI. WAY cheaper than the over priced hunting packs (Estock, Kifaru, etc). Currently use a Osprey Argos 85 with homemade felt cover. Quiet and carries more weight than I could physically handle (120lbs+). Decades of research and engineering went into some of these companies, why count them out because they don't come in a fancy camo pattern?
Camo has nothing to do with it. Why are you counting Eberlestock out? A lot of work went into those packs. Is it because they're camo?