Perfect for shorter missions, the Ambush optimizes the area on a user's back with a wider platform, shorter torso length and reduced stack height. With external access to the 3L, 100oz Mil Spec Crux Reservoir that provides 25% more water per sip, the Ambush is our largest hydration pack that includes external fill. FEATURES External fill for rapid refill without having to remove reservoir from pack Uses 500D Double-rip Cordura® Fabric for the ultimate combination of strength and durability Top and bottom external zip pockets hold your essentials Low-profile MountainMOLLE on bottom pocket Side-release shoulder straps for rapid removal Side zippers allows easy access to the reservoir fill port D-Rings for tube management Lightweight webbing harness Adjustable sternum strap Hook-and-loop strap management Add or remove name tags and unit badges quickly with integratedhook-and-loop panel Ergonomic webbing grab handle Drain hole on hydration compartment SPECIFICATIONS COLLECTION: Hydration