Sunglasses TIFOSI RAIL FOTOTEC — matte black frame, Clarion Red photochromic lens (74%–14% light transmission)

TIFOSI RAIL FOTOTEC sport sunglasses feature a matte black frame combined with a Clarion Red photochromic lens that adapts automatically to changing light conditions. The lens darkens from high visible light transmission to a low tint range, offering a balance between clarity and sun protection. The wraparound frame provides broad coverage for eye protection during cycling, running and other outdoor activities while the lightweight construction supports comfortable extended wear.

Advantages

The Clarion Red photochromic lens adjusts its tint continuously between approximately 74% and 14% visible light transmission, reducing glare and preserving contrast as lighting changes. The matte black frame is designed for secure fit and unobtrusive style, while the wraparound lens shape increases peripheral protection from wind and debris. Materials are selected to keep overall weight low for long-duration comfort and to maintain stable fit during active movement.

Suitable for

• Cycling on roads and trails
• Running and jogging in mixed light
• Multisport training and outdoor fitness
• Commuting and daily rides with variable weather

Key specifications

• Frame finish: matte black
• Lens type: Clarion Red photochromic
• Light transmission range: approximately 74% (lightest) to 14% (darkest)
• Coverage: wraparound design for extended peripheral protection
• Weight: lightweight construction suitable for extended wear
• Intended use: cycling, running, multisport outdoor activities

How to use

Wear the sunglasses during outdoor activities to benefit from automatic tint adjustment as ambient light changes. Position the frame so the nose pads and temple arms sit comfortably and securely; adjust temple tension gently if necessary to improve fit. Clean the lens with a microfiber cloth and mild lens cleaner to maintain optical clarity; avoid abrasive materials. Store the sunglasses in a protective case when not in use to prevent scratches and maintain photochromic performance.

Usage recommendations

For best performance during variable light conditions, use the sunglasses continuously rather than switching between multiple pairs. Allow a short transition time when moving between bright and shaded environments for the photochromic lens to reach its optimal tint level. Avoid prolonged exposure of the lenses to extreme heat when stored, and inspect fit before high-speed cycling to ensure stable positioning.