Athlon Argos G2 10x42 HD Binoculars have a secure, ergonomic, and comfortable one-handed grip. They come with superior quality Advanced fully multi-coated lenses for sharp contrast, true color, and excellent light gathering capabilities. They also have Bak-4 prism glass featuring our new ESP Dielectric coating and phase correction for color fidelity and sharpness. Argon gas purging makes the Athlon Argos G2 10x42 HD binoculars waterproof and fog proof. A light weight magnesium alloy chassis reduces weight, taking strain off of your neck but makes it strong enough for the harshest environments. Includes soft case, neck strap and Athlon's Lifetime Warranty. FeaturesPower: 10 xField of View: 319 ftWeight: 25.5 ozESP Dielectric Coating- Enhanced Spectral Dielectric CoatingESP Dielectric Coating is a multi layer prism coating that reflects over 99% of the light to your eyes bringing you a clear, bright image that displays accurate color reproduction.XPL Coating- Xtra Protective Layer coatingXPL Coating gives you an extra protection on the exterior lenses from dirt, oil and scratchesLightweight Magnesium ChassisMagnesium chassis give you the strength of a metal chassis while reducing the weight as much as 35%Phase Corrected prismsPhase corrected prisms produce images that have better contrast, a higher resolution and better color reproductionBaK4 prismsBak-4 glass prisms reflect more light to your eyes which will give you brighter and sharper image.Advanced FMCAdvanced Fully Multi-Coated lenses gives you better light transmission to bring optimum brightness and true color across the entire light spectrum.Long Eye ReliefLong eye relief can be particularly important for eyeglass wearers because longer eye relief allows them to still see the entire field of view.Close FocusClose focus is important for those who are nature observers and especially important if you are going to watch butterflies or insectsTwist Up EyecupsTwist up eyecups with intermediate stops allow you to set the eyecups to the ideal eye relief for you eyesWaterproofWaterproof to protect the binocular in the harshest weather conditions or if accidentally submerged underwater