The Redfield Renegade 10 x 50 Porro Prism Binoculars use a fully multicoated lens system with BaK-4 porro prisms to provide excellent light transmission and crisp images. Twist-up eyecups and long eye relief allow for comfortable extended viewing, and armor-coated construction offers durability. The rugged binoculars are O-ring sealed, fog proof and waterproof for use in all conditions. Traditional design. Black.