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Key Features

Base Curve 8
Lens Category 2 to 3
Size 67x15x132
Fit Extra large
RX available No
Made in Japan
Ref 8919
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Lens

PhD 2.0
  • Photochromic
  • Polarized
  • Spectral Control

Frame

Nylon
Matte Black
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Provides a wide field of vision while offering extreme comfort, coverage and protection for XL faces, these are the reasons why SILIO exists. Its rimless design combined with extremely thin temples make up this flexible and ultra-lightweight model. The PhD™ 2.0 lens gives the final touch for an incredible visual acuity. A dynamic style for a modern and sporty look.

555nm® BLUE

Category 2 to 3.

Overcast to medium light conditions.
Ideal for Everyday use.
Available in polarized ultra-light mineral and PhD™ 2.0 lenses.

Absorbs 75% to 92% of the visible light, according to the lens.
Blocks 89% to 94% of the blue light, according to the lens.

As a beautiful variation of the 555nm®, the 555nm® Blue features a reflective blue dielectric mirror coating, which offers a category 2 to 3 555nm lens protection that reflects more glare and improves contrast.

PHD 2.0


THE PERFECT BALANCE OF VISUAL AND PHYSICAL PERFORMANCE.

As quality and perfection are key for us, we dedicated this remarkable lens to our Sport collection.

Built with NXT® technology and made from Trivex material, the PhD™ 2.0 lens is extremely light and thin, 75% lighter than glass, ultra-flexible, while being highly impact and temperature resistant.
In fact, to begin with, Trivex material was used by the US military for fighter jet canopies and helicopter windshields. It has required 12 years of development: 10 within the military and 2 years for adaptation to the optical sunglass lens market.

This lens also offers a high optical clarity and avoids any distortion.

The PhD™ 2.0 features hydro- and oleophobic front-side coatings, which help repel water, fingerprints and debris.
The highly durable backside anti-fog treatment enables perfect vision and performance whatever the activity.

PHOTOCHROMIC TECHNOLOGY

Molecularly infused in every Serengeti® lens

ADAPT TO LIGHT

As the pioneer of Photochromic technology, Serengeti® leads the industry in creating lenses that adapt to any light condition in any setting. Serengeti® Photochromic lenses are activated by the amount of UV radiation in the atmosphere and engineered to transition from light to dark, gradually.

  • In bright conditions, UV radiation is more intense. The lens molecules expand in size, darkening the lenses. Less light can then pass through.
  • In darker conditions, UV radiation is less intense. The molecules shrink and separate, lightening the lenses. More light can pass through.

Your eyes are always protected and receive the optimal amount of light needed at any times and in all weather conditions.
You are able to discern shapes and colors more quickly while eliminating eyestrain.


SPECTRAL CONTROL® TECHNOLOGY

Molecularly infused in every Serengeti® lens

MANAGE THE LIGHT

Specific and unique to Serengeti®, Spectral Control technology provides you with the ultimate High Definition vision of everything in sight.

Blue light is necessary to regulate our biological clock. However, it is also a high-risk factor for age‑related macular degeneration (AMD).
Spectral Control® Technology filters up to 96% of blue light, allowing only the beneficial and regulating turquoise blue light to pass through, to reduce blue blur and visible noise.
This protects your eyes from aging and damage to preserve your sight perfectly.

It enhances a natural color balance and improves contrasts and perception by acting like a “HD” visual equalizer to achieve the perfect mix of colors across all conditions. It selectively manages light wavelengths, distinguishing reds, greens, and yellows.
Landscapes that would be washed out, dull or flat with other lenses become defined, vibrant, and vivid — while your eyes remain cool and relaxed.


POLARIZATION TECHNOLOGY

CONTROL THE LIGHT

Whether you’re in a high- or low-glare environment, you deserve lenses that give you the ultimate glare protection and with it, uncompromised clarity.

Our polarization technology eliminates 99,9% of disruptive glare from the four types of glare: distracting, discomforting, disabling and blinding. This ensures, therefore, no more reflection from: vehicle headlights, intense lights, shiny surface reflections and the everyday outdoors.
When glare reflects off the road, water, snow or flat areas, parallel light rays can pass through unhindered, while distracting perpendicular light is reflected.

It offers UV protection up to 400nm.

This polarization technology relieves eye fatigue and impeded vision by eliminating disruptive glare. It also allows you to experience absolute clarity, revealing elements that you couldn’t see before.

Some products feature non‑polarized lens option.