With an Air Director back panel and a designated place for an additional 3L Reservoir means you\'ll stay hydrated and comfortable regardless of how long your ride is.The Camelbak HAWG 3L CRUX MIL Spec Long Coyote Features:The Two full-length compartments help keep essential items within easy reach and organized.Extended Mountain MOLLE on front for secure attachment of your trail or full face helmet and essentail gear.The Padded harness and Air Director on the back panel optimizes load distribution keeping the bag comfortable and the weight of heavier items distributed and improves breathability.Side-release shoulder strap and waist belt for rapid removal.A Dedicated insulated hydration compartment (with reservoir hang loop).Upper and lower compression straps.Main storage compartment can accommodate a second reservoir.Uses 500D Double-rip Cordura® Fabric for the ultimate combination of strength and durability against the elements and narrow trail debris.