At just over 30 liters the Granite Gear Boundary Daypack is one of the largest in the Granite Gear Barrier line of packs. It makes excellent use of this space through its multi compartment design, including a protective Barrier stash pocket, a Gear Tec laptop sleeve and a convenient multi pocket organizer. However, the most distinctive features of the Boundary are its external storage options. It has two large strech mesh hydration pockets, a daisy chain loop, and convenient stash straps located on the bottom of the pack. The Boundary has a raised back panel with lumbar support, as well as a breathable, load absorbing shoulder harness. The Boundarys unique ability to comfortably carry loads both inside and outside the pack is granted by this luxurious suspension system. Repelaweave fabric with Taurpalite bottom for maximum protection against elements. Ergonomic MaxLoad multi compartment design. Barrier Zipper tricot lined pocket for valuables. Breathable load absorbing shoulder harness. Load stabilizing sternum strap Ergonomic raised foam back panel with lumbar support. Adjustable compression straps. Daisy chain loop for easy attachment. Bottom stash straps. Dual stretch mesh hydration pockets Gear Tech computer sleeve fits most 17 laptops. Multi pocket organizer. Dimensions: 19.75x12.75x8. Capacity: 1850 cu. in. 30.25 Liters.