Even though the Leupold BX-1 Yosemite binoculars are compact in size, they still offer huge performance. The adjustable eyepieces have introduced more kids to the outdoors than any comparable binocular. But make no mistake: the BX-1 Yosemites are serious binoculars. Leupold binoculars won't be outlasted or outperformed. Each binocular has been tested to ensure durability even in the harshest conditions. Leupold BX-1 Yosemite Features Armor coated and rugged The durable aluminum housing is shrouded in a rubber coating that provides a positive grasp. L-Coat BAK4 Prisms The fully multi-coated lenses are combined with L-Coat BAK4 prisms to provide excellent photopic transmission for a clear, bright image under any condition. Ergnomic Design The design ensures a slim, lightweight product that fits well in your hands no matter what size they are. Narrow Interpupillary Distance Smaller interpupillary distance settings give a wider range of people full use of the optics. Porro Prism Design The Porro prism design offers the user excellent depth perception and outstanding 3D image representation. Leupold BX-1 Yosemite 8x30mm Shadow Grey Binocular 172705