The Vortex Crossfire HD is the new and improved version of the Vortex Crossfire series. Vortex has equipped the Crossfire HD 10x42 binoculars with an improved HD optical system with fully Multi Coated lenses. This ensures a higher light transmission, giving you brighter and sharper images than its predecessor. The Vortex Crossfire HD 10x42 binoculars are also equipped with a Vortex Glasspak Binoculars Harness in which you can properly protect your binoculars when you are not using them. This bag can easily be hung on your chest so that you can take it with your hand.