Storage
The Osprey Xenith 75 features four specific access points to the main compartment, including top, bottom and two side access locations. The various access points made packing and unpacking quick and easy and allowed for numerous storage options. I found the two vertical zippered side pockets especially useful, as I could store rain gear, extra clothing and other items in these pockets and access them without having to go through the main compartment.

The Xenith 75 comes with two large zippered hip-belt pockets that provide excellent storage. These pockets are quite large and allowed me to store an iPhone, small camera and even a snack in a single pocket. The lid comes with two zippered storage pockets that can store a large quantity of smaller items and can also be removed and used as a day pack for side trips.

The two side pockets are large enough to securely hold a 1-liter water bottle, or use the pockets for more external storage. An external hydration sleeve between the back panel and main compartment provides easy storage of a hydration bladder and makes packing easier. The location also negates condensation developing on the bladder.

Hip Belt
The Xenith 75 incorporates the new Osprey BioForm hip belt, which provides good padding and comfort. It’s easy to adjust, has thick padding and has a good wrap around feel. A large zippered pocket is also provided on each side of the hip belt.

Backpanel/Shoulder Straps
The Xenith uses reversed spacer mesh, which is smooth and breathable. The frame is curved to allow good airflow behind the back and help keep you cooler during aerobic activities. An interchangeable, adjustable, gender specific harness, provides thick padding to add to overall comfort and fit.

Stability
With loads in the 40 to 55-pound range, the Xenith was very stable, comfortable and performed very well. It did not shift or float, even on steep terrain or on the occasional scramble. For testing purposes, I loaded the pack with 65 pounds and hiked several steep ascents and descents. During this testing I found no noticeable difference in performance.

Overall Comfort
The Osprey 75 provides good overall comfort while carrying loads up to 65 pounds in a variety of conditions. The pack’s lightweight, good padding and easy adjustments contribute to it competing very well in this class of packs in terms of comfort.

Durability
The Xenith 75 proved durable, even after weeks of intense use. The zippers, pockets and fabrics all performed well, other than a few scratches. The only obvious negative was that the Osprey design logo peeled off the front stretch pocket after several days of use.