Original Camelbak M.U.L.E D2, durable, rugged hydration backpack. Great for cycling, hiking, or "Medium to Ultra Long Endeavors" Excellent used condition, normal wear, small snags/holes in bottom, doesn't effect use. one buckle needs to be replaced on waist strap. please view all photos carefully as they are part of the description, sold as is. *needs a bladder (apx. 3 Lt.) I wouldn't want to buy a used one, so I'm keeping it. Air Director™ ventilated back panel with Air Mesh shoulder harness enhances cooling airflow Slider SternumStrap™ lets you adjust the location of the strap--up or down--for a customized fit Reservoir compartment features an easy-access perimeter zipper Three zippered compartments--one with a gear organizer--carry everything you need for epic day trips; Bungee Cinch System™ holds extra clothing Top zippered weather-resistant pocket holds your phone. Removable waistbelt adds versatility Strap management system secures straps, keeping loose ends to a minimum if you have questions please ask, I'll be happy to help.