Perfect as a secondary pack for heading into the mountains or for setting off on any number of traveling adventures, the Mountainsmith Scream 25 Backpack—made from Duramax™ ripstop HD nylon and a ripstop liner—is a step above the rest when it comes to lightweight backpacking and travel. Plus, with an internal hydration sleeve and exit port that can accommodate water bladders up to 3 liters in size, air-flow shoulder straps that add breathability and comfort, and plenty of space, the Mountainsmith Scream 25 Backpack is a no-brainer for all your backcountry, abroad and at-home adventures.