The 10x42mm Colorado Waterproof Binoculars by Barska is the perfect blend of functionality and portability. Each binocular in this series features a folding roof prism design, which allows them to be transported and stored in compact places. Barska's Colorado Series are a great multi-purpose binocular that are great for sporting events, backpacking, hiking, or nature viewing. Fully coated optics give the viewer a bright, crisp image.