9191 KAVU Mini Rope Sling On the heels of the Rope Bag's smash success, Kavu's design crew created this beauty by using a Rope Bag blueprint reinforced with a durable and vibrant 600D poly fabric with water resistance. And now it's packaged in a mini.Some love the patina of a well-worn canvas Rope Bag. Others can't resist the travel friendly properties of a water resistant poly Rope Sling. But we can all be assured that there is a KAVU bag for everyone.