The Scopecoat is constructed of high quality 3mm thick neoprene laminated with nylon. Its simple design safeguards any kind of scope from dings and scratches, dust, dirt and moisture With over 80 different size fits, Scopecoat Rifle and Tactical Scope covers come in four different models: Standard 3mm scopecoat, Scopecoat 3mm with Retainer Loop, XP-6Flak Jacket andHolographic and Electronic Scopecoats.