The lowepro 100 aw sf lens case is equipped with a dual compartment design and allows the user to change lens with one hand increasing lens exchange speed when youre not changing your lenses over the case collapses back to a single lens shape the two mesh side pockets provide easy to reach storage space for lens or body caps the removable adjustable shoulder strap offers an additional carrying option the sliplock tab allows the case to be worn on the lowepro sf belt or other compatible