#color_Translucent Blue / Black with REACTIV 0-3 High Contrast lens
#color_Translucent Blue / Black with REACTIV 0-3 High Contrast lens
#color_Translucent Blue / Black with REACTIV 0-3 High Contrast lens
#color_Translucent Blue / Black with REACTIV 0-3 High Contrast lens
#color_Translucent Blue / Black with REACTIV 0-3 High Contrast lens
#color_Black / Gray with REACTIV 1-3 Light Amplifier lens
#color_Black / Gray with REACTIV 1-3 Light Amplifier lens
#color_Black / Gray with REACTIV 1-3 Light Amplifier lens
#color_Black / Gray with REACTIV 1-3 Light Amplifier lens
#color_Black / Gray with REACTIV 1-3 Light Amplifier lens
#color_Purple / Pink with REACTIV 1-3 High Contrast lens
#color_Purple / Pink with REACTIV 1-3 High Contrast lens
#color_Purple / Pink with REACTIV 1-3 High Contrast lens
#color_Purple / Pink with REACTIV 1-3 High Contrast lens
#color_Purple / Pink with REACTIV 1-3 High Contrast lens
#color_Pastel Pink / Green with Spectron 3 lens
#color_Pastel Pink / Green with Spectron 3 lens
#color_Pastel Pink / Green with Spectron 3 lens
#color_Pastel Pink / Green with Spectron 3 lens
#color_Frequency Blaze Spectron 3 HD
#color_Frequency Blaze Spectron 3 HD
#color_Frequency Blaze Spectron 3 HD
#color_White / Blue with Spectron 3 HD lens
#color_White / Blue with Spectron 3 HD lens
#color_White / Blue with Spectron 3 HD lens
#color_White / Blue with Spectron 3 HD lens
#color_White / Blue with Spectron 3 HD lens
#color_Blue / Black with Spectron 3 HD lens
#color_Blue / Black with Spectron 3 HD lens
#color_Blue / Black with Spectron 3 HD lens
#color_Blue / Black with Spectron 3 HD lens
#color_Blue / Black with Spectron 3 HD lens
Frequency
Frequency

Frequency

Sale price$229.95
4.8
Rated 4.8 out of 5 stars
17 Reviews
SKU: J5674412
Color:Translucent Blue / Black with REACTIV 0-3 High Contrast lens

Dial your performance and style up to 11. The Frequency seamlessly blends functionality and a bold, shield-style lens that creates optimal coverage for running, biking and more. Flexible and secure temple arms and a lightweight frame sync up with a wide, cylindrical suspended lens that’s cleverly vented above the bridge. Tune into the beat—with the Frequency, your outdoor adventures just got a whole lot more stylish and fun. Looking for even more coverage? Check out the Density.

  • Panoramic View: Wide lens for maximum of vision.
  • Nose Grip: Flexible shock-absorbing grip insert on the bridge.
  • Grip Tech Temples: Exclusive soft material on the temples that doesn't stick to hair, for perfect grip and comfort.
  • Flexible Slim Temples: Thin wraparound temples that offer optimal comfort and fit.
  • Front Venting: Natural front venting of air created by the lens shape.
  • Bio-Sourced Rilsan: Made with materials derived from castor beans, this frame is lighter, stronger and more environmentally friendly than frames made of traditional plastic. 
  • 100% UV Protection: Julbo lenses block 100% of UV a, b, & c rays.

 

Size: Medium

Sunglass Width (mm):  140

Lens Height (mm): 49

Bridge Distance (mm): 13

Temple Length (mm): 123

Base: 5

Lens Width (mm): 52

Age: Adult

Weight: 22 g

Need Help?

Having trouble deciding which sunglasses or helmets are right for you, we can help!

Our NEW Eyewear Finders can help you determine the perfect sunglasses or goggles. You can find them HERE.

If you want to learn more about our REACTIV Photochromic Lens Technology you can find information on REACTIV sunglass lenses HERE.

You can find additional information about our REACTIV goggle lenses HERE.

For general questions check out our FAQ's.

For any additional questions you can contact our customer service at info@julbousa.com.

Nose Grip

Flexible, shock-absorbing inserts on the nose bridge increase comfort and grip.

Grip Tech Temples

Soft, rubberized temples offer comfort and perfect grip.

Bio-Sourced Rilsan

Made with materials derived from castor beans, this frame is lighter, stronger and more environmentally friendly than frames made of traditional plastic.

FAQ

Photochromic lenses adjust to changing light conditions by getting lighter or darker depending on the amount of UV light present. The more UV light—or the brighter the conditions—the darker the lens becomes, and vice versa. REACTIV is the name for our proprietary photochromic technology. 

 REACTIV photochromic technology is helpful when the weather changes, if you're recreating early or late in the day or if you're in and out of the woods frequently. Since the lenses change how light and dark they are, you don't need to switch from one lens to another or take off your sunglasses/goggles as conditions change.

Julbo offers a variety of REACTIV photochromic lenses, which are available in polarized and non-polarized options.

Read more about REACTIV photochromic technology here.

Read more about the benefits of polarized lenses here.

REACTIV lenses are photochromic and adjust to changing light conditions by getting lighter or darker depending on the amount of UV light present. REACTIV lenses are made of NXT (Trivex), which has the clarity of glass and exceptional durability and impact resistance. 

SPECTRON lenses are not photochromic and will not lighten or darken. SPECTRON lenses are made of polycarbonate, which is shatter resistant, and are a versatile lens suitable for all types of activities.

Visible Light Transmission (VLT) refers to the percentage of light that filters through a lens—the higher the number, the more light passes through. A window in a home, for example, might have a VLT of around 70%, allowing most visible light to pass through while filtering enough to keep your sofa from getting bleached. A typical goggle lens, like a home’s window, has a fixed VLT—the amount of light it lets through and blocks out remains the same, no matter how bright or dark it is outside. 

The VLT of Julbo’s REACTIV lenses, on the other hand, changes as ambient light changes. The new REACTIV 0-4 lens, which has the widest VLT range of any photochromic lens on the market, has a range of 83 to 5%. In other words, just 5% of visible light filters through the lens under extremely bright conditions, allowing for ultimate protection. Conversely, 83% of visible light filters through when it's dark out, allowing for total clarity. Regardless of VLT, REACTIV lenses filter 100% of harmful UVA, B, and C light.

High Contrast lenses have a rose tint and rose base color, designed to enhance contrast. HC (rose/red) tints are ideal for situations with varied terrain in low light, for example snowy, flat light or during poor weather. 

Light Amplifier lenses have a yellow tint and yellow base color, designed to brighten everything by increasing light receptivity. LAF (yellow) tints are ideal for darker conditions, like trail running and mountain biking in the woods or recreating early and late in the day. 

4.8
Rated 4.8 out of 5 stars
Based on 17 reviews
Total 5 star reviews: 13 Total 4 star reviews: 4 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
Slide 1 selected
17 reviews
  • GG
    Gwen G.
    Flag of United States
    I recommend this product
    Rated 4 out of 5 stars
    5 months ago
    Pretty Good

    I have a small face and these seem to fit pretty well. I have a small nose and very straight nose bridge so what would make them 100% better is if the nose piece were at least slightly adjustable. I wear these for hiking (and will also wear them biking, but haven't yet) and wore them on trails all around Colorado Springs including up the Manitou Incline and they did pretty well. They just sit on my cheeks a little and leave marks, which I think could be alleviated with a nose piece that could be adjusted. I was complimented on them by a stranger so they must look good, as well. They are very lightweight and with the exception of them sitting on my cheeks, fit well. They didn't squeeze my head too tight and they were comfortable over my ears for most of the 40 miles we hiked.

  • AS
    Allan S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    12 seconds ago
    perfect backcountry

    I recently tried out my incredible Frequency sunglasses with Reactive lenses, and I can't recommend them enough! These shades have entirely transformed my backcountry skiing experience. The lenses adjust seamlessly with excellent airflow, providing optimal clarity for navigating terrain in variable light conditions.

    Whether I was skinning up steep trails or enjoying a leisurely break to soak in the views, these sunglasses adapted perfectly to mountain lighting conditions. They’re lightweight and comfortable, making them ideal for long adventures. Plus, I love the pink-to-purple transitions of this colorway.

    If you're an outdoor enthusiast looking for reliable eyewear that won't make you sweat, the Frequency Reactive sunglasses are a game changer. They elevate your performance and ensure you’re ready for whatever nature throws your way.

  • CW Profile picture for Chris W.google logo
    Chris W.
    Verified Reviewer
    I recommend this product
    Rated 4 out of 5 stars
    1 month ago
    Best possible for pickleball

    I have Julbo Aerospeeds (now discontinued but similar to Ultimate) in Reactiv 1-3 for road cycling, and they are perfect for that, but the Frequency with Reactiv 0-3 are absolutely perfect for pickleball. They are super light weight, and never ever fog!!!!. They stay in place, are frameless on the bottom so they don't obstruct the bounce, offer plenty of coverage but are not super oversized for a social sport.....and they are basically clear inside, while still providing shade in direct sun. It would be helpful if they lighten up quicker once the sun goes down and are not quite as dark just as the sun lowers, but otherwise perfect.

  • WG
    William G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Cycling Sunglasses

    Hardly notice these on my face. Light and comfortable along with effective transition going into and out of shady areas.

    Julbo Eyewear
    3 months ago

    Thank you for the Review!

    Best,

    Colby

  • BB
    Ben B.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Light ,grippy and stylish

    Glasses are stylish and so light yet they grip well. Good glasses for a small to medium size face as well. I do wish this one had the photochromatic option. Its a great lens but would be better if it had the option to adjust for lighting. The green highlights on the side are sharp, the lens does have a nice mirror finish. These feel like quality sunglasses for cycling or running even spring skiing. Highly recommend