The Sightmark Solitude 7×36 XD Binoculars are the binoculars with fully broadband multi-coated lenses, the highest quality optical glass on the market and a straight tube light system, achieving maximum light transmission and optimal brightness, perfect for travel and quick, on-the-go observation. Their XD (extra low dispersion) glass help correct optical color defects, caused when different light wavelengths do not converge at the same point after passing through optical glass. A durable rubber-armored, nitrogen-filled and O-ring sealed body, making these lightweight binoculars waterproof, fog proof and dust proof. The twist-up, adjustable eye cups provide a comfortable custom fit, helping to correct eye relief at any viewing position. A nylon carrying case, a neck strap, lens covers and a shoulder harness are included.