Constructed of lightweight, high-tenacity fabrics and employing an auto-adjusting suspension system, the roll-top Big Agnes Prospector 50L pack is an excellent option for overnight backpacking trips. Committed to a 'Leave No Trace' ethic, Big Agnes also includes a simple, but effective Trash Can accessory. The pack's suspension system includes a cored aluminum perimeter frame, a curved, body-mopped backpanel, and an integrated 'Hoist Compression' system that pulls weight inward and upward while raising the bottom panel to ensure a positive load transfer. Though the pack doesn't have torso length adjustability, it is available in two sizes to ensure a proper fit. The Medium pack best fits 18'-20' torso lengths and the Large size best fits from 20'-22'. An adjustable 'Open Range' hipbelt aids in load stability and uses cut-away construction to avoid excess weight or bulk. Load-lifter straps and an adjustable sternum strap allow for additional fit fine-tuning. A roll-top closure provides access to the spacious interior of the pack. A zipper imbedded in the backpanel allows additional access without having to undo the roll-top closure. A deep stretch pocket and mesh side pockets offer additional places to stow gear you may want to put hands on while on the move. A smaller zippered pocket adds extra security for small valuables. Other features include removable hipbelt pockets, trekking pole attachments, ice axe loops, daisy chain gear attachment points, and an integrated top handle. A hydration bladder pocket, tube routing port, and a drinking tube clip on the sternum strap make the pack hydration compatible (hydration system not included). The included Trash Can clips to the face of the pack for convenient removal of any litter. The Big Agnes Prospector 50L internal fame backpack is available in your choice of sizes and colors.