The Tamrac MX5341 M.A.S. Lens Case - Pro 50 (Black) is a 600 denier Ripstop PolyTek nylon lens case with closed-cell foam padding and a weather flap. This case is designed to fit most wide angle zoom lenses (such as a 16-35mm f/2.8) with shades (reversed) and other lenses up to 5.5" (14cm) long with a filter size of 82mm. It is part of the M.A.S. (Modular Accessory System) that allows photographers to customize and personalize their backpacks, shoulder bags and cases by using accessories that quickly attach to the M.A.S attachment slots. This case will also attach to any belt or to the Tamrac Modular Accessory Belt. The case has a carrying handle and a belt loop.