Kinesis SafariSack 4.2 (Black/No Fill w/Shoulder Strap) DESIGNThis rugged bean bag is for supporting a DSLR, mirrorless or video camera on a vehicle, car window, chair, table, tree limb, fence post or on the ground. It is quicker to use than a tripod. The bag has a zippered compartmentfiller, such as polyethylene beads, buckwheat hulls, rice, beans etc. can added w/o the need for a liner. ***Polyfilled SafariSacks are HEAVY. The 4.2 polyfill weighs almost 6 lbs and the 1.4 weighs 2 lbs. Order the Buckwheat for a lighter bag. MODES OF USEIt can used in three modes: 1) flat, providing a large lower to the ground shooting surface; 2) saddlebag mode, with the side straps cinched, elevating your camera. Drape it over the edge of a partially raised car window or place it on the ground to shoot flowers or insects; or 3) ballast modehang it on a tripod or light stand to stabilize in the wind or when using super-telephoto lenses. It is also for supporting a rife at the range. BUILD QUALITYIt is constructed of a combination of durable 400-denier and 420-denier Ripstop Nylon fabrics. We dont use cheap polyester fabrics like many imports!). Additionally, the bottom has a rubberized-type fabric that keeps the sack in place when placed on a vehicle or other slick surface. It is double stitched throughout and reinforced at the webbing junction points. INTERNATIONAL TRAVELWhen traveling abroad take the empty version and fill it locally with rice, beans or bird seed. Then, upon completion of the shoot, dump the contents, returning home with an empty, compact bag. Designed & Crafted in the USA