This is a 2001 Lowe Alpine Contour III backpack. It is 70 L plus a 15L extention (4500-5000 ci) Great for week long backpacking trips. It is in excellent condition. It will adjust to a myriad of torso lentghs with the Torso Fit System (16" to 22.5"). Very comfortable pack and great for beginners or pros. The pack has two water bottle holders, hydration pouch, top lid pocket/fanny pack, sleeping bag compartment, daisy chain, air cooled back system, and tough construction. I will also throw in the two extra side pockets shown in the picture. These add approx. 800 ci. Email me for pics. My email is firstname.lastname@example.org.