SwiftReliant Binoculars feature phase-corrected BaK4 prisms and fully multi-coated optics for crisp image detail. These Swift Binoculars are built with your comfort in mind - they feature rubber eyecups for a comfortable view, and a large, easy to use center focusing knob for rapid target focus and ease of use - even while wearing heavy gloves. Whether you need an all-purpose porro binocular with a sweeping field of view that's ideal for tracking fast moving objects and ideal for the bird watcher, hunter or sports fan, or you're looking for a waterproof/fogproof roof binocular design that allows for use in all weather conditions - the Swift Reliant Binocular series has a model that's ideal for your needs. Swift Sport Optics SwiftReliant Binoculars are available here at some of the best prices you'll find anywhere online!