Description of Osprey Aether 60 Backpack The Osprey Aether 60 backpack is a versatile pack that lends itself to weekend treks and extended trips into the middle of nowhere. With improved suspention, an added sleeping bag compartment and J-Panel access to gear you can't go wrong. Features: Convertible Top Pocket - Lumbar Pack Hydration Compatible InsideOut™ Compression J-Panel access Red Internal Compression Strap Sleeping Pad Straps Tool Attachment