Brand New with Tags rom summit hikes to urban streets, you'll be equipped to move fast with Klymit’s Stash lightweight hiking backpack. The Stash day hiking backpack is the right size for everything from cycling to commuting around town to taking to school. An integrated Air Frame uses air pressure to provide comfortable padding and load transfer support, and a convenient hand pump lets you adjust the air pressure for personalized comfort all day long. By leveraging the lightness of air, the inflatable Air Frame eliminates the need for metal stays and plastic sheets, making it lighter than traditional frame systems. Our day hike backpack is constructed of lightweight, durable nylon fabric designed to resist water and shed light snow. Durable, reliable, polyurethane-taped AquaGuard Vislon zippers add water resistance. Equipped with 18 liters of storage, the Klymist Stash Backpack is the perfect size for carrying essential gear on short day hikes and extended trail runs. 18-Liter Hiking Daypack: A must-have piece of ultralight backpacking gear, this versatile hiking backpack is ideal for daytime hikes, biking, and strolling around town Air Frame Technology: This innovative hiking bag features an integrated Air Frame that uses air pressure to provide padding and load transfer support, plus a convenient hand pump that allows you to make easy adjustments Built for the Trail: This lightweight hiking and running backpack features 18 liters of storage space and weighs just 13 ounces.