There is more than meets the eye with Tamrac's Professional Lens Cases. Constructed of waterproofed PowerGrid Cordura with a smooth nylon lining, there is a double layer of foam to surround the lens. The outer layer is dense, closed-cell foam and the inner layer is a soft, open-cell foam.Together, they combine to cradle and protect expensive lenses. A hard plastic bottom beneath the foam protects the lens from shock. The tops have full coverage rain flaps, double slider coil zippers and Tamrac's Easy Squeeze quick-release buckles for fast access and protection. A handle on top, belt loops and "D" rings for accessory shoulder straps provide carrying options and convenience.The Medium Lens Case protects and offers safe transportability for professional lenses up to 8" long.