While the X3 600 has long been the top choice for longer format ski mountaineering races, the updated X3 Backdoor delivers the same kind of lightweight performance with a more durable fabric and back-panel access which make it the perfect choice for standard ski tours and days dedicated to hunting for powder stashes. The exclusive Backdoor feature allows access inside the pack without having to remove everything on top before reaching gear at the bottom. The Tri-Ripstop fabric is light, tough and coated for water repellency and abrasion resistance. The Xpress Wire ski carrying system allows skis to be attached and removed without removing the pack. The spacious lid and large open mesh pockets on the sides keep things organized, and the padded hip belt has a fast-access pocket for small essential items. The X3 Backdoor also features the innovative C.A.M.P. exclusive EZ OP buckles on the chest strap and waist belt which use a one-handed pull tab for faster, easier opening. Updated materials, graphics and colors.