Another new Pantac item which you can get at RedWolf Airsoft for US$53.00 and already includes the bladder. Though this one's in ACU.. "The EV Scorpion Hydration Pack is capable of holding up to 2L of fluids, and up to 2.5L of cargo space; and due to the insulated drinking tube, the EV Scorpion Hydration Pack can be used in sub-zero climates with no trouble at all.

The EV Scorpion Pack features the Big Bite Valve (no moving parts effectively eliminates the chance of leaks). Great for those rugged adventures in the country!

Made of light weight abrasion and water resistant 1000D Invista Cordura fabrics with YKK zippers, ITW Nexus & UTX buckles with Mil-Spec. Sewing Seams adopted. Mil-Spec. Velcro is good for over 20,000 uses.

Mil-Spec. 420 denier Nylon liner improving durability and water resistance.

All Pantac gear is made to comply with Heavy Duty Military Specifications."