Durability, comfort, and image quality the Vortex Triumph HD Binoculars give you the best of all worlds. An HD Optical System, fully multicoated lenses, and a roof prism work together to deliver exceptional resolution, cut chromatic aberration, and provide edge-to-edge sharpness, light transmission, and color fidelity. Adjustable eyecups and diopter for comfortable viewing. Rubber-armor construction is durable, waterproof, shockproof, and nitrogen-gas-purged for fogproof performance. Tripod adaptable. These binos include GlassPak binocular harness (or carry case for 10x28mm model), a neck strap, a tethered objective-lens covers, a Rainguard eyepiece cover, a lens cloth, and a case. HD Optical System Fully multicoated lenses Roof prism Adjustable eyecups and diopter Rubber-armor construction Waterproof and shockproof Nitrogen-gas-purged for fogproof performance Tripod adaptable Includes harness, neck strap, objective-lens covers, eyepiece cover, lens cloth, and case