Head out on the Pacific Crest Path with a pack that's going to last; the Jansport Klamath 55 Backpack was built to last and is ready to rack up the backpacking miles. The Ventech cushioned back panel was engineered with circulation grooves to increase ventilation and create airflow, cooling the user's back. Quick fit adjustments and customization is easily obtained by the GridFit technology that allows the user to adjust the shoulder widths individually in order to provide the best fit possible. The ergonomic AirCore shoulder straps prevents the straps from cutting into your shoulders when you're hauling all your gear on a multiday backpacking trek. Trek with proven and lasting durability when you head into the wilderness with the Jansport Kalamath 55 Backpack.