Discover exceptional clarity and rugged performance with the Vortex 10x42 Crossfire HD Binocular. Optimized with an HD Optical System, these binoculars deliver outstanding resolution, superior color fidelity, and edge-to-edge sharpness. Fully multi-coated lenses enhance light transmission, while the compact Roof Prism design ensures durability. The rubber armor provides a secure grip and external protection, with O-ring seals and Argon gas purging preventing moisture, dust, and internal fogging for reliable use in any environment. Features include adjustable twist-up eyecups for comfortable viewing with or without glasses, a center focus wheel, and a diopter for individual eye adjustment. The included GlassPak Binocular Harness offers quick deployment, superior protection, and comfortable wear with adjustable straps. A Vortex cap with an adjustable closure is also included.