Named after the McKenzie River, on the western slope of the Cascade Range, Leupold BX-1 McKenzie binoculars are the first to combine the handling characteristics of a roof prism binocular with the performance and price of a porro prism design. Fully multi-coated lenses provide enhanced photopic transmission, which in turn provides a bright crisp image. The well balanced, phase coated, roof-prism design makes them comfortable and easy to hold, even during periods of prolonged viewing. Armored, waterproof, and nitrogen flled, Leupold BX-1 McKenzie binoculars are well protected against feld conditions and feature the Leupold Lifetime Warranty. Includes a case, quick detach neoprene neck strap, eyepiece covers and tethered objective lens covers. • Open Bridge Roof Prism Design • Smooth Focusing • BAK4 Prisms