When every gram counts but you still need a pack that’s more than just a sack with shoulder straps, the Exos is an excellent ultralight companion. Made from 100% recycled materials, the Exos 38 is perfect for those more dedicated trips when supplies are scarce. Serious backpackers will appreciate the class-leading comfort and ventilation—without the weight that often adds up—making it the perfect pack for thru-hikes and ultralights like the AT or Colorado Trail. Need to slim things down even further? Remove the floating lid and deploy the integrated FlapJacket to protect your gear inside. Plus, the refined AirSpeed® suspension keeps you cool with maximum airflow between you and your pack, so every mile remains as comfortable as the last.