THRESHOLD smith sunglasses

The THRESHOLD is a perfect update to the very successful Mainline. Extremely lightweight and includes an adjustable temple. The Patented interchangeable lens system creates a sleek and subtle design allowing easily interchangeable lenses perfect for the running trail, golf course, or weekend ride. Smith utilizes distortion-free, 9 base lenses to provide precise optical clarity and maximize coverage while minimizing peripheral exposure to sun, wind, and glare. 16 replacement lens tints to choose from.

FEATURES
• Medium/Large Fit
• Patented Interchangeable Lens Technology
• Adjustable Wire Core Temple
• Polarized include 4 sets of lenses
• 9 base TLT™ Carbonic™ Lenses
• Grilamid™ TR90 Nylon Frame
• Hydrophilic Megol™ nose/temple pads
• 100% UVA/B/C Protection
• Distortion-Free Polarized Lens Model
• Lifetime Warranty
For more info about these features, click the links below.

SUNGLASS TECHNOLOGY

Precision Optics - All about warped lens technology, polarization etc.
Superior Materials - Smith lens and frame materials explained.
Enhanced Vision - Learn the difference between different lens tints and why polarizaion.
UV Protection - How Smith brings UV protection to your eyes.
Lens Tips - How to change your lenses (interchangeable models only).
RX Tech - Info on Smith prescription lens sunglasses.