With its low-profile shape and rugged dependability, the Mountainsmith Tour Lumbar Pack holds all the gear you need for a day hike or urban adventure. Mountainsmith equipped the Tour with its Delta Compression System, which ensures loads up to twelve pounds are evenly distributed for comfortable carrying. All you have to do is adjust the waist belt and cinch down the compression straps, and your lumbar pack won t bounce as you go up the trail or walk downtown. The waist belt tucks away in case you decide to sling this bag over your shoulder with the removable, padded shoulder strap (sold separate). The Tour has two mesh pockets that each hold a 32-ounce water bottle. Not to mention, you can use this lumbar pack as a carry-on, too—it even has an airplane ticket pocket on its back panel if you decide to take it abroad.