XCSOURCE&reg; 5mm Thick Medium DSLR camera Drawstring Soft Neoprene Lens Bag for Sony Canon Nikon Pentax Olympus Panasonic DC502 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!