Abstract: A multifunctional enclosure for back-carried equipment. When used with equipment that provides a harness for carrying the equipment on a user's back, this enclosure provides a number of features relating to the transportation, storage and usage of the equipment. When used as an enclosure for a backpack, the backpack is inserted into the enclosure and the contents are transported by means of a handle or shoulder strap in a manner similar to a duffel bag. Whenever the backpack must be left unattended for any period of time, a padlock can be used to interconnect the zippers to prevent the zippers from being unzipped. For additional security, a metal cable can be used to secure the invention and enclosed backpack to an an immobile object. This feature allows the traveler to leave the backpack unattended for short periods of time without the fear of theft of the contents or the backpack itself.