700 Cubic Inch Pack with Pressurized Water System. Comes loaded with a 70 oz (2 Liter) Geigerrig Hydration Engine, but can host a 100 oz (3 Liter) Hydration engine. Molle attachments. Insulated Tube. 500D Cordura. Two large stowage compartments. Back ventilation. Compression straps. Box-stitch reinforced pack handle. Additional interior utility organizer and mesh pockets. Carry it. Molle to it. (Length - 20 Inches. Width - 11 Inches.)
Don't forget to buy a filter. This reservoir is filter-ready. Also, you may want to consider buying a bulb holder if you are retrofitting to another pack -- not required, but nice to have.