From Manufacturer
Stabilize your camera on irregular surfaces like uneven ground, vehicles, or tree limbs with the LensCoat LensSack Beanbag Camera Support. Use by laying it flat to support a longer lens, or folded in half to provide additional height. Constructed from water-resistant Cordura in black, a nonslip grip material covers the entire bottom surface, as well as the gusseted edges, to minimize unwanted movement. Secure your camera one step further with the four d-ring attachment points allowing performance in the most rugged environments.
The LensSack ships empty, allowing you to use separately-purchased poly pellets, dried beans, or even sand and dirt found on location. The YKK locking zipper withstands harsh elements, keeping the fill of your choice from leaking. A built-in adjustable strap doubles as a carry handle for added convenience when transporting in the field.