XCSOURCE&reg; 5mm Thick Extra Large DSLR camera Drawstring Soft Neoprene Lens Bag for Sony Canon Nikon Pentax Olympus Panasonic DC504 5mm thick (roughly) Neoprene - provides great protection and shock absorption for your lenses. Belt Loop - allows you to attach the pouch to your belt, for convenient carrying. Hook - allows you to attach the pouch anywhere with a ring (such as camera bags and backpacks). Finest Quality Water-resistant neoprene Products!