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:Neoprene has a 5% moisture absorbency which takes moisture away from the scopeThe nylon helps shield against objects getting into the optic.May be washed in warm water then turn inside out to dry.To install, pull over scope. The recommended fit is either "relaxed same length" or slightly stretched.