Smith Threshold Slider Sunglasses

• Perfect slider shades for the medium-large fit face
• The Threshold is a perfect update to the very successful Mainline
• Extremely lightweight and includes an adjustable temple
• Patented interchangeable lens system creates a sleek and subtle design allowing easily interchangeable lenses perfect for the running trail, golf course, or weekend ride
• Distortion-free, 9 base lenses provide precise optical clarity and maximize coverage while minimizing peripheral exposure to sun, wind, and glare
• 16 replacement lens tints to choose from
• Available in a variety of frames and lenses