The Osprey Exos Pro 55 represents the pinnacle of ultralight gear for the most demanding long-distance hikes, thru-hike expeditions, and multi-day mountain adventures where every single gram counts. With a significantly reduced weight compared to classic predecessors and advanced construction, it delivers the ultimate balance of minimal mass, exceptional abrasion resistance, and superior carrying comfort.

The main body of the backpack boasts high-tech NanoFly™ material, which combines 100D nylon and 200D UHMWPE ripstop threads, protected by an eco-friendly water-repellent coating free of harmful PFAS chemicals. Unsurpassed comfort on the trail is provided by the advanced AirSpeed™ ventilated trampoline backsystem, which allows easy torso length adjustment while ensuring supreme airflow and load stabilization.

The pack is distinguished by thoughtful features such as a removable top lid with the FlapJacket™ system for further weight reduction, ergonomic ExoForm™ harness and hipbelt for even load distribution, and the dedicated Stow-on-the-Go™ system for quickly attaching and stowing trekking poles on the move. It is the ultimate choice for anyone seeking a reliable, lightweight, and technically refined companion on the trail.