The Campaign box bag is nylon messenger style shoulder made to hold the Campaign box, with the mount blocks attached, painting supplies and other gear. The sides of the bag are padded and it has a hard base with rubber feet for extra protection of your box. On the front there is a large pocket that is great for holding panels, a watercolor block, a sketchbook, or brushes. The flap has a zipper pocket great for pencils, cell phone, or other small items you take to the field. Velcro strips on the front make it easy to attach, carry, and remove either the n0 17 Flex easel or Guerrilla field tripod kit.