The Crossover series of binoculars feature 100 percent waterproof and fogproof protection and exceptionally clear and vivid prisms. These binoculars are engineered to perform under rugged and harsh conditions. This next generation of binoculars feature high-quality BAK-4 prisms and fully multi-coated optics to enhance images making them brighter and clearer. They are dry nitrogen-purged to prevent fogging, clouding and moisture damage. The ergonomic non-slip and shock-absorbing rubber armor provides you with a firm grip. The large center focus knob keeps your view in focus. Adjustments such as twist-up eyecups and right eye diopter let you customize these binoculars to your personal comfort preference. Whether you're hiking, birdwatching or hunting, these binoculars will crossover from one environment to the next!