The military-grade, porro prism Commander is the marine binocular choice for anyone who makes their living on the water. It delivers top of the line image clarity, sharp edge-to-edge definition and contrast, and high light transmission for navigating in low light or fog. The 7x magnification is the marine standard, with a wide, stable image for tracking other boats, buoys and bridge numbers even in rough water. It utilizes high definition optics, index-matched glass and advanced lens coatings, a memory diopter which provides a place to store and indicate your personal diopter setting and Nano-Protection a hydrophobic molecular coating which creates a smooth lens surface. The Makrolon housing is a durable polycarbonate with NBR Long Life rubber armoring, creating a lightweight and a rugged chassis that withstands 11 Gs of impact. Includes floating neck strap, objective cover, rain protection cap and carry case.