The rugged Cavalry Series is an outdoor binocular designed for hunters, boaters, law enforcement, and military personnel. Engineered to withstand the elements, Cavalry is fully waterproof and nitrogen purged to prevent internal fogging. The housing is protected by durable rubber armor, making the binoculars easy to grip while protecting them from hard use. The olive drab color offers concealment in the field. BaK-4 Prisms: Increased contrast and resolution for sharper, more detailed images Large 50mm Objective Lenses: Great for low-light applications. Waterproof and Fogproof Twist-up Eyecups Tripod adaptable: Attach the binocular to a tripod for extended viewing sessions.