The all-purpose Trailblazer ATB compact binoculars have multi-coated lenses and offer waterproof and fog-proof performance. Ergonomic styling is mated with a rubber-armored exterior, providing a firm grip whether wet or dry. All lens and prism elements incorporate Nikon-exclusive Eco-Glass made without the use of arsenic or lead. All lenses are coated with multiple layers of anti-reflective compounds for maximum light transmission. Nitrogen-filled and O-ring sealed for total waterproof, fog-proof and shockproof performance in any environment. Turn-and-slide rubber eyecups, complemented by long eye relief, allow the binoculars to be used comfortably by eyeglass wearers. Large, central focus wheel and adjustable diopter make focus easy to achieve and maintain, even while wearing gloves. Great for bird watching, travel, sports spectating and nearly any outdoor adventure.