The Scopecoat is constructed of high quality 6mm 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. Notes:Made of neoprene laminated with nylon. 6mm thick, it safeguards your kind of scope from dust and dirt, moisture, dings and scratches.Neoprene has a 5% moisture absorbency which takes moisture away from the scope and helps protect the scope from rust and corrosion. The nylon shields against the elements. May be washed in warm water then turn inside out to dry.To install stretch both ends over your scope. The recommended fit is either "relaxed same length" or slightly stretched.