Arc'teryx Naos 85 Backpack - 5004-5370cu in

As the biggest pack in the Arcteryx AC line, the Naos 85 Backpack represents the obvious choice for carrying big loads in extremely wet environments. This completely waterproof Arcteryx backpack features fully taped seams and a roll-top closure to ensure you gear stays absolutely dry no matter the weather. With 5187cu inches of cargo capacity (medium size), the Naos 85 Backpack easily holds enough gear to keep you going for a week or more. The fully adjustable Thermoformed suspension and 7075 aluminum stays support your giant load of gear, so you can hike in comfort.