Take your Geigerrig engine and all your gear on your daily excursions in the city or on the trail. The RIG 1200 comes with a 2 liter reversible, top-rack dishwasher safe hydration engine with a lifetime warranty against leaks. Stowing and organizing gear is easy with 1200 cubic inches of capacity, an admin pocket organizer, stretch web tie downs and mesh side pockets. Spray to drink, cool, clean, and share. The simple spray action of the hydration system enables the water to be sprayed for cooling, cleaning, and sharing. Spray action of Geigerrig enables the use of a Geigerrig plug-n-play, in-line water filter for on-the-go filtration of water found along the trail. Refill from a river or stream; pressurize the reservoir; and then plug in the small, lightweight filter. Safely drink the crisp, cold stream water. Don’t to worry about running out of water. Carry less water; use water as you need for cooling, cleaning and sharing; and refill from water found along the trail. Turn the reservoir inside out to clean and dry. Capacity for a large lunch, snacks, extra socks, extra t-shirt, maps, cell phone, emergency kit, external water bottles, trekking pole storage, extra base layer, etc. Pack is 20” long, 12” wide, and 2.9 lbs. Reservoir is 16” tall, 7” wide. The reservoir can be easily transferred from this pack other packs. Hydration reservoir has a lifetime warranty for any leaks. Don’t forget to buy a Geigerrig filter.