Alpina PSO Tri-Horray Sunglasses from Alpina's ProSportOptic range include three sets of inter-changeable lenses so that you can always be wearing the right lenses for the current light conditions.

The frames are also packed with features to give you a comfortable fit and to tailor the airflow for increased fog-free vision without draughts.

These shades are provided with dark lenses, orange lenses and clear lenses.

This means that when the prevailing light conditions are very bright, you can protect your eyes from the glare with the dark lenses.

When the light is still bright enough to warrant sunglasses, the orange lenses will perform very well in diffuse light, overcast skies and at the beginning and end of the day’s light.

The clear lenses do not affect the light on the eyes but when you do not need shade, these lenses will still protect your eyes from UV radiation, the wind, dust and flying insects so they will be a real boon in many conditions.

Changeable lenses prepare you for any lighting condition. Black S3 lenses are suitable for intense sunlight and orange S2 lenses are ideal for diffuse light, overcast skies, dawn and dusk. While clear S0 lenses absorb virtually no light at all they do offer comprehensive protection against UV radiation, wind, dust and airborne insects.

Features

• Protection levels: S0, S2, S3
• Varioflex+ lenses
• Break resistant
• 100% UVA, UVB, UVC protection to 400 nm
• Outside hard coated, inside anti-static fogstop coating
• Automatic adjustment of lens tint to light level covering two levels of protection
• Optimized airflow: Heavily curved lenses in combination with indirect air flow ensure draught-free and fog-free vision even at speed
• 2-component design: Combination of hard frame, soft forehead padding and soft nose pad enhances wearing comfort and fit
• Cold-adaptable nose pads allow optimal adjustment to any nasal width and shape
• Coldflex cold-formable ear stems improve grip around ears
• Changeable lens system: Dark lenses for intense sunlight, orange lenses for diffuse light, clear lenses for UV, wind, dust, insect protection
• Removeable optical insert for optical glasses for optimal fitting into sports glass frame
• Case included that also holds lens set

Frame/Lens Colours

• White Frame/Black Mirror S3, Orange Mirror S2, Clear S0 Lenses
• Black Frame/Black Mirror S3, Orange Mirror S2, Clear S0 Lenses