Maximum volume. Maximum hydration. The H.A.W.G. NV is by far the largest CamelBak mountain bike pack after all, its initials stand for“Holds Alotta Water and Gear.. This pack definitely lives up to its name, with ample cargo capacity and 3 liters of hydration for all-day, all-weather rides. The revolutionary NV back panel holds the pack away from your back to keep you cool and comfortable whether you're crouched in the saddle, charging an uphill section or hucking over rocks.