Description of Arcteryx Naos 85 Backpack This expedition sized Arcteryx pack is built for the long haul through pristine valleys and across continental divides. Engineered for heavy loads, the Naos 85 is fortified with a larger double-ring Load Transfer Disc, an adjustable two-point side stabilizer, and a broader radially formed hipbelt for increased comfort. Bonded to the Monoframe of the Naos 85 Backpack is Arcteryx GridLock shoulder strap adjustment system, which allows fast fine-tuning to ensure the optimal fit and ultimate comfort. A comfortable, durable and spacious backpack, the Naos 85 is in it for the long haul. Features: RollTop closure Fully seam sealed Hydration bladder pocket Laminated map pocket Laminated molded AC² Fusion Points Load Transfer Disc Monoframe backpanel Pigment dyed WaterTight Zippers Radially formed Binary hipbelt Radially-formed shoulder straps Removable WaterTight top lid Side access kangaroo pocket Six external compression straps Waterproof Hydroport 3D shaping Gridlock adjustable shoulder strap suspension system