The Scopecoat is constructed of high quality 2mm thick neoprene laminated with nylon. Its simple design safeguards any kind of scope from dings and scratches, dust, dirt and moisture. Neoprene has a 5% moisture absorbency, which takes moisture away from the scope and helps protect it from rust and corrosion. Scopecoat is a proven design that has been field tested and recommended by the North American Hunting Club. Will not work on scopes with tall target style turrets. Notes:Laminated with nylonNeoprene has a 5% moisture absorbency to wick moisture away from scopeMay be washed in warm water and turned inside out to dry