Vortex® Viper HD 10x50 Binoculars feature fully multicoated lenses that increase light transmission by using multiple anti-reflective coatings on all air-to-glass surfaces. Roof-prism construction delivers greater durability and a more-compact size. High-definition, extra-low-dispersion lenses with a phase-correction coating enhance resolution and contrast. They're also coated with scratch-resistant ArmorTek™ that repels oil and dust. Rubber armor provides a sure, nonslip grip and adds shock-absorbing durability. Multiposition eyecups twist up and down for custom eye relief. Includes tethered lens covers, neck strap and padded carry case.