Vortex Solo 10x36 Tactical Monocular Built to be carried as a standard piece of equipment, close-at-hand, the Solo monocular gives you a closer look when you need it. And with the integral carry clip, the Solo attaches securely to any belt, strap or webbing. Premium roof prism and fully multi-coated glass surfaces deliver bright images in a compact, lightweight, and easy-to-handle unit. Optical Features Fully Multi-Coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Construction Features Rubber Armor Provides a secure, non-slip grip, and durable external protection. Adjustable Eyecup Twists up and down for comfortable viewing with or without eyeglasses. Waterproof Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the monocular. Fogproof Barrels are filled with nitrogen gas to inhibit internal fogging. Fully Multi-Coated Lenses. Rubber Armor Construction. Adjustable Eyecup. Waterproof and Fogproof.