Shield M
- Air Flow: Vents in the frame enable air circulation to prevent fogging.
- Cord Attachment: Temples are shaped to work perfectly with a Julbo cord, keeping sunglasses secure in all conditions.
- Grip Tech Temples: Soft, rubberized temples offer comfort and perfect grip.
- Nose Grip: Flexible, shock-absorbing inserts on the nose bridge increase comfort and grip.
- Removable Synthetic Side Shields: Soft, lightweight and comfortable side shields block extreme sunlight at high elevations and are easily removable.
- 100% UV Protection: Julbo lenses block 100% of UV a, b, & c rays.
- Silicone cord attachment included
- Size: Medium
- Sunglass Width (mm): 125
- Lens Height (mm): 43
- Bridge Distance (mm): 17
- Temple Length (mm): 120
- Base: 6
- Lens Width (mm): 54
- Age: Adult
- Weight: 30 g
Removable Synthetic Side Shields
Integrated Venting
Bio-Sourced Rilsan
REACTIV Photochromic lenses automatically adjust to UV light conditions. REACTIV technology enhances contrast and amplifies clarity, reducing eye fatigue during your adventures. Julbo lenses are shatterproof and scratch-resistant, and all our eyewear is backed with a lifetime guarantee.
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. Julbo calls its photochromic technology REACTIV. 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.
