The Neos binoculars are built tough, with a composite chassis that’s O-ring sealed and nitrogen purged making them 100% waterproof/fog-proof. Featuring: Bak4 Prism, Composite Chassis, Multi-coated Lenses, Close Focus, Twist Up Eyecups, Waterproof.
Bak-4 glass prisms reflect more light to your eyes which will give you brighter and sharper image.
Fully Multicoated optics effectively reduces reflected light and increases the transmission of light giving you a brighter image than normal single coated lenses.
Waterproof to protect the binocular in the harshest weather conditions or if accidentally submerged underwater.