Spirit XF 8420 Spirit XF binoculars outshine other optics in its price class. Spirit XF offers outstanding image quality, weather resistance and user-friendly features! Expect edge-to-edge clarity, high-contrast images and brilliant color reproduction thanks to its BaK4 roof prisms and lens coatings. 100% waterproof and fogproof, Spirit XF is made to take on the outdoors and challenging weather with textured rubber armor for a secure grip and shock resistance. Spirit XF has a unique open bridge body design so it’s lightweight, compact and comfortable to use all day without tire. Impressive image quality Lightweight, open-bridge body design Multiple-position eyecups Long eye-relief No-slip and extreme rubber armor