Sightron SI Series Waterproof Binoculars 10x25mm SIWP1025 are ideal for backpacking, birding, and outdoor events. The SI 10×25 Roof Prism Binoculars from Sightron are compact and highly affordable. Wherever lightweight binoculars are required, the Sightron 10×25 SI Binoculars are sure to fit the bill. These Sightron Binoculars offer features such as a rubber armored body, multicoated lenses, waterproof and fogproof design. The 15mm eye relief is perfect for eyeglass wearers.