Built for epic adventures in harsh environments. The huge, forgiving eyecups is made for long glassing sessions. Extra-low dispersion HD lenses and the Twilight Max Light Management System combine to give you a crisp image, vibrant color and optimal contrast in harsh or poor light. With Abbe-Koenig roof prisms ramping up light transmission, they also redefine low-light performance, clarity and resolution at extreme long range. Includes Pro Gear Accessories- Go Afield shoulder strap, binocular case, bino tray, lens covers and a lens cloth.