The original member of our Quadraquip Series, the Xeno comes equipped with a 1) Built-In Rain Cover, 2) A Multi-Purpose Pouch, 3) A Laptop Compartment, and 4) Ergo-Grip Backstraps, four things to round off a complete backpack! Xeno is equipped with Ergo-Grip Backstraps that are constructed to evenly distribute weight across your shoulders and back. It is also designed with an Anti-Sweat Cushioned lumbar support. This keeps you from fatiguing and sweat-free even after long hours of carrying the backpack at full capacity.