Osprey Aether™ 55L

A robust and high-performance 55L hiking backpack, designed to support demanding trekkers across all types of terrain. From the moment you hit the trail, the Aether 55 guarantees optimal reliability and lasting comfort, even on extended expeditions. Thanks to its Fit-on-the-Fly™ adjustment system—featuring an adjustable hipbelt and shoulder straps, as well as an adjustable torso length—this pack adapts perfectly to your body shape for a precise, personalized fit. Its injection-molded back panel ensures excellent stability and a comfortable, close-to-the-body carry.

Made from durable bluesign®-certified nylon with a PFC-free DWR water-repellent finish, the Aether 55 combines durability, environmental responsibility, and weather protection. An integrated raincover is also included to keep your gear dry in adverse weather. Ideal for trekking, long-distance hikes, and self-supported adventures, this 55L backpack combines capacity, comfort, and durability.