All Atmos packs feature water resistant zippers to help keep your gear dry, and a welded, stretch woven front pocket, using the most advanced technologies to provide a more versatile storage solution. Effectively adding more volume and storage capacity, it will hold anything from a bike or board, to a boating helmet or extra gear. Every Atmos pack also features zippered, mesh hip belt pockets for easy access to smaller items, like a compass, sunscreen or lip balm. Reinforced 10mm aluminum AirSpeed frame. Dual stretch woven side pockets easily can fit a one-liter water bottle. Quick, zipper access to the main pack through the left front pocket. Floating top pocket. The ErgoPull tensioning system hip belt draws the pack evenly over the user's hips, avoiding painful pressure points. Removable sleeping pad straps for an added level of versatility. Specification: Best use - Backpacking. Frame type - Internal. Backpack style - Lightweight backpack. Ultralight - No. Gear capacity (cu. in.) - 4,000 cubic inches. Gear capacity (L) - 65 liters. Average weight - 3 lbs. 9 oz. Average weight - metric - 1.63 kilograms. Adjustable torso - No. Fits torso - 18 - 20.5 inches. Fits waist/hips - 30 - 34 inches. Material(s) - Nylon. Frame material - Metal alloy. Number of stays - 1 peripheral hoop. Suspended mesh back panel - Yes. Pack loading - Top. Pack access - Top. Number of pockets - 7 + main compartment. Sleeping bag compartment - Yes. Carrying Capacity: Up to 50 lbs. Raincover included - No. Gender - Men's. Measurements: ; Middle Width: 12 1 2 in ; Depth: 7 1 2 in ; Strap Drop: 14 1 2 in ; Handle Length: 2 1 2 in ; Product measurements were taken using size MD. Please note that measurements may vary by size.