These black Leupold BX-2 Acadia 10x42mm binoculars feature a proprietary nitrogen fill process, synergy build, twist up eyecups, smooth diopter focus, rugged waterproof armor, slim in-line design, phase coated lenses, BAK4 prisms, and close focus distance of 10 feet. Leupold BX-2 Acadia 10x42mm Black 119191