The feel is open-ended, like a good itinerary - with just the features a traveler needs. The lightweight fabric allows the Travel Sling to mold itself to the shape of your back, keeping its load close to your center of balance. The main compartment is roomy enough for map, lunch and a shell, with extra space for found treasures. Two organizational pockets, one with a key-chain clip, hold easily lost items. The shoulder strap includes an electronics pocket for your phone or music player, and a mesh water-bottle pocket keeps your favorite liquids handy. For traveling, there's a 3-point-adjustable mesh shoulder strap and the entire pack stuffs into its own pocket. Made of 50-denier 100% nylon triple ripstop with a polyurethane coating and a DWR (durable water repellent) finish.