Avalanche | Bags | Avalanche By Fl Yutan 2 Ripstop Backpack 。This Official Avalanche Backpack can be used for hiking, travel, school, and so much more. The 10 inch wide Interior pocket slot is perfect for your tablet or e-reader. The backpack also offers reflective zipper tape for your safety and night-time travel. The reinforced bottom panel helps prevent contents from dropping out of the bottom. The backpack also has adjustable, padded back-straps for your comfort. It is made from durable rip-stop polyester fabric that will stand up to rips and tears.