H20 Series 8x42 WP/FP Roof Prism BinocularPowerful bright optics in a 100% waterproof package.The only thing we didn't do was teach them to swim...The ultimate on-the-water viewing companions, our ever-popular H20 binoculars have been enhanced with a Soft Texture Grip to keep them on board and in your hands in the most challenging conditions.Just as before, they're O-ring sealed and nitrogen purged to ensure stunning views no matter how wet they get.To maximize light transmission and clarity, standard equipment includes multi-coated optics and premium quality BaK-4 prism glass.From the streamside to the Gulf Stream, the world simply looks better through the Bushnell; H20.Features:BaK-4 prisms for bright, clear, crisp viewingMulti-coated optics for superior light transmission100% waterproof: O-ring sealed and nitrogen purged for reliable, fog-free performanceNon-slip rubber armor absorbs shock while providing a firm gripTwist-up eyecupsLarge center-focus knob for easy adjustmentsLonger eye relief