Kodiak binoculars produce luminous images rich in contrast and color through a combination of fully multi-coated optics, premium BaK4 prisms and a generous 42mm aperture. Available in magnifications of 8x and 10x, Kodiak binoculars deliver excellent views of the details sought by birders, sports enthusiasts and outdoor adventurers of all types. The binoculars in this series have a durable rubber armoring for a steady grip and are sealed and nitrogen-purged to create an internal environment that is both waterproof and fogproof for all-weather performance. They also offer above average eye relief so eyeglass wearers can enjoy a fuller field of view, twist-up eyecups and a tripod thread. USA Limited Lifetime Warranty when product is registered within 60 days of purchase. FEATURES Waterproof BAK4 Optics Long Eye Relief Fully Multi-Coated Rubber armoring for protection and durability Twist up eye cups