Zulu7 Binocular 10x42mm HDX Lens Open Bridge Graphite by Sig Sauer Item Description: This premium and open-hinged short-to-long range roof prism ZULU7 lightweight binocular utilizes Sig Sauer's industry leading HDX optical design that combines extra-low dispersion glass with high light transmittance glass to provide you with the maximum in color and image brightness and and absolute clarity. Fully multi-coated roof prism binocular incorporates super high reflectance phase-coated BAK4 prisms for unmatched resolution and image contrast. The ZULU binoculars incorporate a magnesium housing to ensure they can survive rugged conditions. Ranked "Best of the Best" in 2016 by Field and Stream Item Specifications: Durable rubber armor protects with an ergonomic non-slip grip design. Multi-position twist-up eyecups — great for eye relief and allows a custom fit for each user. Tripod-compatible Rugged and durable by design Includes tethered lens cover and strap and lens cloth and and padded case. Waterproof and fog-proof performance - IPX-7 rated for complete immersion up to 1 meter