Designed for the birdwatcher and avid outdoor adventurer, these binoculars have been designed with the features and quality outdoor enthusiasts expect. The fully phase coated roof prisms deliver clear and crisp images. Their weight distribution and contoured shape minimizes strain and fatigue common during long observing sessions. Close focus gives you a dramatic view of the action from a short distance and is balanced by a field of view that gives you the big picture. These binoculars are also 100% waterproof and fog proof. Other features include twist-up eye-cups and center focusing system.