Designed with both the avid hunter and sports enthusiast in mind, Simmons 8x 21 mm ProSport Roof Binocular (Clamshell Packaging, Camouflage) gives you an up-close, strikingly clear view. Enjoy sharp contrast and vivid detail while choosing from a wide range of configurations. This binocular brings the action up-close and feature high-quality, multicoated optics and BaK-4 prisms. It is nitrogen purged for full waterproof and fogproof performance. Plus, ProSport Roof binocular is encased in tough and durable rubber armor, for a sure grip and added protection in the worst weather conditions.