Finally, a pack built for general outdoors, backpacking and mountaineering. The Mystery Ranch Terraframe 80 Pack will soon become your new secret weapon when carrying awkward, excessive loads. The OVERLOAD feature has been offered in hunting and military packs for years, and it's high time this feature is used for backcountry pursuits, too. Climbers, fisherman, guides and general outdoor enthusiasts will appreciate the load-taming design of the patented OVERLOAD feature. OVERLOAD gives you functional expandability via a load sling (not included) between the pack and the frame, allowing you to put the bulk of the weight closest to your back for optimal comfort. Plentiful pockets abound inside and outside this pack, including inside the Daypack lid, 2 long external pocket and stretch-woven water bottle pockets. Other features include rigid carbon-fiber frame stays and suspension system that provides an ideal amount of torsional flex while supporting loads up to 150 lbs. 330D Lite Plus CORDURA fabric offers an optimal strength-to-weight ratio Guide Light MT frame for carrying comfort OVERLOAD load sling provides expandability between the pack and frame Quick-attach frame cap hardware provides easier OVERLOAD conversion Top-loading shroud with full zippered panel access around back pockets 2 external long pockets for ease of organization Internal compression keeps tension off of zipper 2 full-length side-zip access Stretch-woven water bottle pockets Convertible Daypack lid with porting for hydration (reservoir not included) Telescoping yoke offers a custom torso fit Daisy chain with adjustable tool attach loops YKK coated zippers for durability and water protectionSizing Details: M fits 15-20 inch torso; 26-32 inch waist L fits 17-24 inch torso; 35-40 inch waist XL fits 17-24 inch torso; 39+ inch waist