H.A.W.G. 100oz Mil Spec Crux Coyote Tough enough for nearly any mission, the H.A.W.G. features the new MIL Spec CRUX reservoir and holds over 1200 cubic IN (20L) of essential water and gear. The HAWG is a medium sized pack that is extremely versatile and durable. With over 20L of cargo and a 3L, 100oz Mil Spec Crux reservoir that offer 25% more water per sip, the HAWG is perfect for medium to long missions. The Air Director back panel and designated place for an additional 3L Reservoir means you will stay hydrated and comfortable regardless of mission length.