• BaK-4 porro prisms for bright, clear, crisp viewing.
• Fully Multi-coated optics for superior light transmission and brightness.
• 100% waterproof / fog proof.
• O-ring sealed and nitrogen-purged to keep out moisture.
• Highly resistant to saltwater corrosion.
• Non-slip, non-skid rubber armor cushions bumps and shock, prevents sliding and provides a firm grip when wet.
• Hermetically sealed.
• Fold-down eyecups.