The Ultima 22 Backpack boasts sought-after storage and still manages to pack down to the size of a soda can. When expanded, it can be carried in two configurations: compact for all-day convenience or a more robust mode that takes advantage of the full capacity by expanding and adding the clip-on fanny pack. The tough ripstop build is waterproof on its own and reinforced with YKK watertight zippers. But most notably, it comes with a removable, inflatable back support that doubles as a padded seat, so you can rest your bones no matter how rocky the terrain gets.

• An extremely durable, waterproof backpack that compresses into the size of a soda can and expands to a full 22-liter backpack with an extra 3L from the clip-on hip pack
• Dual-side expandable mesh pockets with an easy access front pocket
• Removable, inflatable back support cushion doubles as seat pad
• Adjustable sternum strap with an emergency whistle
• Adjustable and removable hip straps

• Durable waterproof Cordura® with YKK zippers