Tamrac"s M.A.S. Lens Case - Pro 100 is designed to fit most pro standard zoom lenses (such as a 24-70mm f/2.8) with shades (reversed) or other lenses up to 6½-Inch (16.5cm) long with a filter size of 77mm. This zipper-closing, foam-padded lens case features a weather flap for equipment protection and quickly attaches to any belt or to Tamrac products featuring the Modular Accessory System attachment slots.