Mercury Tactical Tac Pac with Hydration Coyote. This durable Backpack from Mercury Tactical was designed for Navy SEALs and Special Operations Forces so you can be sure that you are getting the best of the best. Reliable and ideal for extreme conditions the Code Alpha Technical Gear Tac Hydrapak will keep your valuables safe. With a large main compartment and many smaller gear pockets you can carry anything in your Mercury Tac BackPak with 3 day Hydropak. Specifications for Mercury Tac BackPak with Hydrapak: Dimensions: 20.5" x 15" x 7.75" to 12.75" Material: 600 Denier Polyester with Double Coated PVC Lining for Strength and Durability Capacity: 100 Ounce Reversible Hydrapack Water Bladder Features of Mercury Tac BackPak with Hydrapak 600 denier polyester with water-resistant interior 100oz. Hydrapak reservoir included Large expandable main packing compartment Organizer pocket Back support belt with parachute clasps Side parachute clasps Easy-grip zipper pulls Hook and loop strip for name tape Package Contents: Mercury Tac BackPak 100 Ounce Reversible Hydrapack Water Bladder Mercury Tactical MRC9978-CY: Tac Pac with Hydration Coyote