Sport sunglasses TIFOSI RAIL XC Clarion Fototec photochromic lens, satin vapor frame, Clarion Red lens (74%–14% light transmission)

TIFOSI RAIL XC sport sunglasses are engineered for cycling and outdoor training where variable light conditions and full-field vision matter. The design combines a single, wide Clarion Fototec photochromic Red lens with a satin vapor lightweight frame to provide broad coverage, impact resistance, and adjustable tint. The Clarion Fototec lens changes transmission between approximately 74% and 14% to adapt to shifting brightness, while the frame offers secure fit and comfort during high-movement activities.

Advantages

The single-lens construction gives uninterrupted peripheral vision and consistent optical performance across the field of view. Photochromic Clarion Fototec technology automatically darkens and clears to maintain appropriate contrast and visual comfort in changing light. A satin vapor frame balances low weight with structural stability, and nose and temple contact points are shaped to reduce slip during vigorous activity. The lens material provides UV protection and is selected for impact resistance suitable for sport use.

Suitable for

• Cycling on roads, gravel and mountain trails
• Outdoor training and interval sessions
• Commuting and urban rides with variable shade and sunlight
• All-day rides where changing light conditions occur

Key specifications

• Lens type: Clarion Fototec photochromic Red single lens
• Light transmission range: approximately 74%–14%
• Frame finish and material: satin vapor, lightweight sport frame
• Design: single-lens for extended peripheral coverage
• Protection: UV filtering appropriate for outdoor sports

How to use

Put the sunglasses on so the frame rests comfortably on the bridge of the nose and the temples sit securely behind the ears. Allow the photochromic lens a few moments to adjust when moving between shaded and sunny areas; the Clarion Fototec coating transitions automatically based on light intensity. Clean the lens with a soft microfiber cloth and a mild lens cleaner to avoid scratches and preserve the photochromic coating. Inspect fit before high-speed activity to ensure stability and comfort.

Usage recommendations

Use these sunglasses when you need broad visual coverage and adaptable tint during cycling or outdoor workouts. Avoid prolonged storage in direct sunlight at high temperatures and clean with appropriate materials to maintain lens performance and frame condition.