Combining a bold front with sleek temples in a mid-sized frame, the Montana brings big performance to the biggest skies. Features include the detail- and HD lens, a virtually indestructible Grilamid® construction, high-quality pin hinges, and 6-base polycarbonate ARC® lenses providing 100% UV protection. HD : Combines the superior clarity of our digitally mastered High Definition lenses with the therapeutic and visual performance benefits of our patented Happy Lens™ . Enhanced color and contrast, improved mood and alertness, and impact resistant distortion free optics in one kick-ass package that SPY loyalists have come to know and love. It’s probably the best lens ever.

• HD enhances color and contrast, increases clarity, and improves mood and alertness
• Available with Trident™ polarization that eliminates reflective light
• Constructed from virtually indestructible Grilamid®
• 6-base polycarbonate ARC® lenses
• High-quality pin hinges
• 100% UV protection reduces eye fatigue and long-term sun damage

*All of these measurements are in millimeters