The Osprey Exos 48 Hiking Backpack is the perfect mid-size ultralight pack, with plenty of room to put in the miles, but not so much that you're overloaded. Highly experienced backpackers will appreciate industry-leading comfort and ventilation - without the weight it often adds - making the Exos 48 the perfect pack for ultralight multiday adventures. Boasting an AirSpeed suspension, it will keep you cool with maximum airflow between you and the pack, so each mile stays as comfortable as the last, while the strong backpanel mesh and durable main body fabrics ensure robust longevity.  For optimum space and versatility, you can also rely on front, side and hip-belt pockets as well as a hydration sleeve, trekking pole attachment and compression straps. Plus, for those who really need a svelte carry, the removable floating lid makes way for an integrated FlapJacket that keeps your minimal gear contained in its stead.