Caden Neoprene DSLR Camera Lens Soft Protector Pouch Bag Case For Canon, Nikon, SONY, Pentax, Olympus camera-M Approx. 3mm thick (roughly) It is made of water-resistant neoprene. Neoprene - provides great protection and shock absorption for your lenses. Water-resistant Neoprene, soft and flexible bag is widely used to protect your lens from shock, bump, dirt, etc. It is suitable for Canon, Nikon, SONY, Pentax, Olympus camera, etc.