The H2O 10x25 Compact Foldable Binocular (BlACK/BLUE) from Bushnell delivers higher magnification in an on-the-water compact housing. Waterproof with o-ring seals, the rubber armoring is textured with soft ridges to keep them in your hands and on board even when wet. Nitrogen purging inhibits fogging and condensation whether on the lake, canoeing on a river or blue water sailing. This is a compact, petite binocular with a closed folding bridge, multi-coated lenses and premium BAK4 prism glass that ensure maximum light transmission and clarity. Twist-up eyecups and a center focus knob supply comfortable, customized viewing no matter how drippy the environment. The roof prism design allows a lighter more compact experience. This glass leaves no excuses for not having magnification immediately accessible when that magic moment materializes out of the mists.