The high-pressure, cast magnesium housing, 44mm objective lenses and roof-prism mirror coating technology, which delivers greater, true-color image contrast and light transmission, are just a few of the new features and benefits that come with the new Steiner Peregrine XPbinoculars. Combine these features with new, extra-large ocular lenses and large fields of view and these binoculars are designed exclusively to meet the needs of dedicated hunters, birders and explorers around the world. Using a new, lightweight magnesium housing that is shockproof and waterproof/submersible, Steiner engineers have developed rugged, ergonomically comfortable, lightweight 8x44 and 10x44 binoculars. The 44mm objective lenses are nearly 10% larger than a 42mm lenses, plus they're built with an exceptionally large 25mm ocular lens. These larger lenses, and the binoculars' unique body design and focusing wheel, give them an extraordinarily rapid focus. The ergonomically shaped, rubber-covered body is an attractive dark forest green color. Embedded in the armor, Steiner has used a new gel-filled grip and thumb pad that add a considerable amount of grip and comfort. The XT's come with twist-up ocular barrels and interchangeable, ergonomic rubber eyecups, a quick attachable and removable Clic-Loc neck strap, and attached objective and ocular lens covers. 30-year limited warranty.