One Ball Jay - Large Gear Bag / Travel Bag - Converts to Backpack
A pretty large sized cordura/nylon type gear bag/travel bag that has two large evenly divided compartments.  Two carry handles on one side with a velcro cuff to join them, one handle at the top, two large buckled compression straps around the circumference, and adjustable backpack straps complete with adjustable waist belt that stash away in a zippered compartment when not needed.  

Approximate measurements
Bag Height - 20"
Width - 14"
Depth - 9"