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Transitions Premium Features

An illustration of the sun with the letters UV inside, on top of a shield shape.

An illustration of aviator glasses with dark lenses.

An illustration of sunglasses superimposed on the sun.

An illustration of the sun and a smartphone superimposed on a shield shape.

An illustration of glasses superimposed on a clear lens and a dark lens, with a stopwatch above.

An illustration of glasses superimposed on a circle.

A woman in tortoiseshell glasses with ruby red Transitions Gen S lenses that change from clear to dark.

NEW Amazingly Fast Transitions

8 optimized colors that darken in seconds and return to clear fast.

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Amazingly Fast

An illustration of sunglasses superimposed on the sun.

Darkens outdoors in seconds

An illustration of an eye with a crosshair as the pupil, framed by brackets.

Effortless vision

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Fully clear indoors

An illustration of glasses with dark lenses superimposed on a shield shape with the sun behind.

Blocks 100% UVA & UVB rays, filters blue-violet light

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8 vibrant colors

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The Darkest Lenses2

Protection2 for light sensitivity and bright light indoors and outdoors, even in the car.

Illustration of darkened lenses under the sun.

The darkest in hot temperatures3

Illustration of clear lenses inside a building.

Clear indoors with a hint of tint

Illustration of sunglasses superimposed on a car windshield.

The darkest in the car4

Illustration of the sun with the letters UV inside, superimposed on a shield shape.

Blocks 100% UVA & UVB rays, filters blue-violet light3

A man wearing aviator frames with Transitions lenses that go from clear to dark.

Defy the Glare

The only and best photochromic polarized lens5

Illustration of darkened lenses in the car.

Activates in the car6

Illustration of glasses with dynamic polarization, vivid color, and sharper vision.

Dynamic polarization, vivid color, and sharper vision6

Illustration of darkened lenses under the sun.

Great for active lifestyles and outdoor activities

Illustration of clear lens with a hint of protective tint indoors.

Clear with a hint of protective tint indoors

Illustration of UV blocking shield.

Blocks 100% UVA & UVB rays, filters blue-violet lightz

A woman sitting in the front seat of a car wearing round glasses with Transitions lenses that change from dark to darker.

Polarized Sunglasses

Sunglasses that reduce glare & adapt to changing light while driving or enjoying the outdoors.

Illustration of sunglasses superimposed on a car windshield with the road in the background.

Responds to light in the car

Illustration of an overcast sky with a light green lens below, a sun with a copper lens below, and a bigger sun with a brown lens below.

Changes tint for sun or clouds

Illustration of sunglasses within a shield shape with a landscape in the top right with sparkles to indicate glare.

Always polarized to reduce glare

Illustration of sunglasses superimposed over the sun.

For driving or any outdoor activities

Illustration of the sun with the letters UV inside, superimposed on a shield shape.

Blocks 100% UVA and UVB rays

Transitions FAQ

What makes Transitions® Gen S™ different from other Transitions lenses?

Transitions Gen S lenses are formulated to be ultra responsive to light and in most conditions will darken in seconds outdoors and return to clear indoors very rapidly (around 2 minutes). Please note that temperature can affect the speed of these chemical changes within the lens, with optimal change occurring at 23ºC.

Gen S lenses are also the first to feature the new vibrant Ruby Red lens color option, along with seven other stylish lens color choices, all of which return to clear indoors.

What kind of protection do Transitions® Gen S™ lenses offer?

Like all Transitions lenses, Gen S lenses block 100% of UVA and UVB light. They also filter up to 32% of blue-violet light indoors and up to 85% of blue-violet light outdoors. (Blue-violet light is measured between 400 and 455 nm.)

Are Transitions® Gen S™ lenses polarized?

No, Gen S lenses are not polarized. However, they do achieve Category 3 darkness to ensure your vision comfort in bright outdoor light, along with UV and blue-violet light protection.

Why should I choose Transitions®?

Transitions® lenses are the top-performing photochromic lenses on the market. Transition lenses change more quickly than other photochromic lenses and activate up to a category 3 darkness3 outdoors. Plus, they pack the value of hassle-free comfort, versatility, and protection. Transition lenses are great if you are looking to make a single purchase because they offer the benefits of clear lenses, sunglasses, and blue-light blocking lenses all in one photochromic package. Zenni is proud to offer the best value for Transitions® lenses on the market. For more information about Transitions® lenses, visit https://www.transitions.com/en-us/.

Will temperature affect my Transitions® lenses?

The molecules in photochromic technology work by reacting to UV light. However, temperature can affect the molecules’ reaction time. Colder temperatures mean molecules move more slowly, and it will take longer for Transitions lenses to adapt from dark to clear, even on sunny days. Warmer temperatures mean molecules speed up and become more reactive, meaning a faster fade back from dark to clear. Moving from sun to shade in warmer climates, your lenses will be quicker to detect the diminished UV rays and will lighten in color. Transitions® Signature® GEN 8™️ lenses are more responsive than previous generations: fully clear indoors, darker outdoors, and returning to clear indoors, faster than ever. For more information about Transitions® lenses, visit https://www.transitions.com/en-us/.

Are photochromic lenses good for your eyes?

Yes! All photochromic lenses offered at Zenni are great options for your general eye health. In addition to blocking 100% of UVA/UVB light, the adaptive, two-in-one nature of photochromic glasses reduces squinting and eye fatigue. For those looking to replace their sunglasses with a photochromic lens, we suggest choosing Transitions® Drivewear®, which will also protect your eyes in the car by darkening while you drive and polarizing in direct sunlight for clearer sharper vision.

How can I properly maintain and clean my Transitions lenses?

To preserve the longevity and performance of your Transitions lenses, clean them regularly with a soft, lint-free cloth. Don’t use abrasive substances or harsh chemicals on Transitions lenses. For a more thorough cleanse, use a mild lens cleaner, followed by drying with a clean cloth. Regular cleaning of your Transitions lenses not only guarantees crystal clear vision but also extends the lifespan of your eyewear.

Can I use Transitions lenses for sporting or active outdoor activities?

You bet! Our Transitions glasses are specifically designed to accommodate a broad variety of activities. Their swift adjustment to fluctuating light conditions makes them an excellent choice for all kinds of sports and outdoor activities. Whether you're a cycling enthusiast, adventure-seeking hiker, or golfing pro, Transitions sunglasses will provide you with a clear view and UV protection when you need it most.

Can photochromic lenses double as glasses that turn into sunglasses?

Absolutely! Photochromic lenses are a marvel of modern eyewear technology. Not only do they function as regular transition eyeglasses, but they also seamlessly darken into sunglasses when exposed to direct sunlight. With these high-tech lenses, you’ll no longer need to switch between prescription glasses and sunglasses. They’ll adjust automatically based on their exposure to UV light.

How do Transitions® Drivewear® Sunglass Lenses work?

Transitions® Drivewear® lenses utilize advanced photochromic technology to dynamically respond to UV light and sunlight. They are always polarized to minimize reflective glare. In low-light conditions, the lenses have an olive-green tint, which enhances contrast and visibility. As the lighting becomes brighter, they shift to copper and dark brown tints, helping to reduce glare in intense light conditions.

1The darkest in hot temperatures and in the car, in the clear to extra dark photochromic category. Tests on polycarbonate and 1.5 gray lenses.

2The darkest in hot temperatures & in the car, blocking 100% UVA & UVB and offering the best overall blue-violet light filtration across light situations* among clear to extra dark photochromic lenses.*Filtering blue-violet light (between 400 and 455nm ISO TR 20772:2018) among polycarbonate and CR39 gray lenses with a premium anti-reflective coating : filtering (i) up to 45% indoors at 23°C, (ii) up to 64% behind the windshield (iii) up to 86% outdoors at 23°C and (iv) up to 83% outdoors at 35°C.

3Transitions lenses filter at least 26% of blue-violet light indoors and at least 86% outdoors. Tests performed on grey lenses with a premium anti-reflective coating. Blue-violet light is between 400 and 455nm (ISO TR 20772:2018)..

4Clear to extra dark photochromic category. Polycarbonate and 1.5 gray lenses tested at 35°C achieving <18%T using Transitions Optical’s standard testing method.

5In the clear to dark photochromic category.

6Based on tests across materials on gray lenses, achieving transmission below 45% @ 23 °C behind a standard windshield. The lens achieves a polarization efficiency of 30% behind the windshield, which is not classified as being “polarized”.

Transitions®, Transitions® Signature®, and XTRActive® are registered trademarks, and XTRActive® Polarized™, the Transitions® logo and Transitions® Light Intelligent Lenses™ are trademarks of Transitions® Optical, Inc. used under license by Transitions® Optical Limited. GEN S™ is a trademark of Transitions® Optical Limited. ©2024 Transitions® Optical Limited. Photochromic performance and polarization are influenced by temperature, UV exposure and lens material.