The Deep Sea Series is designed specifically for the nautical and boating enthusiast. With 7x magnification and exceptional optics, these binoculars provide clear views of marine observation from sunrise to sundown. In addition, selected models include an internal rangefinder and directional compass for navigation. The Deep Sea series includes a wide range of seaworthy roof and porro styles and sizes to meet the needs of the experienced or beginning mariner. There's even a Deep Sea model that floats! All Deep Sea models feature a rugged rubber armor covering that provides a sure and secure grip.