The XP-6 Extreme Scopecoat is designed to offer maximum protection for all service-weapon optics. SENTRY Scopecoat safeguards your optics from dust, dirt, dings, scratches and moisture. Made from 6MM thick Neoprene a material commonly used in wet suits, conforms to the shape upon which it is placed. Our Neoprene/Nylon laminate composition assists in repelling moisture and condensation away from your optic, as well as, dirt and debris. This combination helps to protect your optics from the elements and damage while storing or transporting your gear. See below for link to sizing chart.