Nikon 16x50 Action Extreme Atb Water Proof Binocular

All terrain binoculars: designed for all levels of outdoor enthusiasm, nikon action extreme binoculars have a durable and protective rubber-armorded coating to provide a sure, non-slip grip, wet or dry. waterproof & fogproof: completely airtight nitrogen filled binoculars and o-ring sealed ensures an impenetrable binocular body that keeps water out and prevents fog buildup. ergonomic body design: a slim and comfortable design provides comfort for long, extended viewing sessions, along with built-in long and variable eye relief that can be customized to accommodate glasses + click-stop, twist-out eyecups for increased customization. smooth central focus knob: with bright, multicoated lenses and bak4 high index porro prisms, the images are bright, sharp and high-definition.