Product Details Product Features Main Compartment: 18"(H) x 9.5"(W) x 4.75"(D) Secondary Compartment: 16"(H) x 8"(W) x 3"(D) Upper Front Pouch: 4"(H) x 7"(W) x 2.5"(D) Lower Front Pouch: 10"(H) x 7"(W) x 2.5"(D) Capacity: 1520 cu. in. / 25 liters Hydration: Up to 100oz Bladder Support: 1" Sternum Strap, 1.5" Waist Belt (min 9" strap alone / max 42" strap alone; min 19" loop / max 52" loop) Optional accessories: Hook & Loop Modular Accessories and Grimloc Carabineer The Falcon II backpack (#0513) is the dramatically improved second generation of our military assault daypack that has been upgraded with the amenities of daily use in mind while not compromising the integrity of rugged battlefield construction.