The first patented front and rear set of bike touring panniers that convert to a comfortable internal-frame backpack! Allows bicycle tourists to escape "white line fever" and escape to a nice trail into the woods while on tour. Mountain bikers have options when the single-track trail becomes insane, even for you. Also unbeatable for traversing airports, bus stations, and other urban areas while en-route to the choice cycling anywhere in the world. Pack your bike and carry your panniers, hands-free. Rear pack by itself is complete as a backpack, and narrow enough for a Cross Country Ski pack, or for other types of day treks. Since 1981, delighted customers worldwide have been registering their enthusiasm - visit our website to share in the experience! www.jonesn2trek.com