1. Durable and protective, rubber-armored.
2. Lightweight, ergonomic design,comfortable to hold.
3. Fully multicoated glass lenses deliver the ultimate brightness and resolution.
4. Bak-4 prisms offer the clear, bright and crisp images.
5. Long eye relief for eyeglasses wearers.
6. Smooth central focus knob for quick viewing.
7. Nitrogen filled and o-ring sealed for waterproof / fogproof.