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  • Julbo - Blast Spectron 3+ Sunglasses -
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  • Julbo - Blast Spectron 3+ Sunglasses -

Julbo Blast Spectron 3+ Sunglasses

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8 Reviews


Have a blast.

With your eyes free of dust, grime, and sun, you'll be free to enjoy the fast and tacky singletrack with the Julbo Blast Spectron 3Plus Sunglasses. Spectron lenses are made from a high-quality polycarbonate material. They provide a high level of shock resistance for additional protection, while the frames are designed to fit well with your helmet. Grip Tech nose and temple pads keep them from sliding down your nose, and the wraparound frame provides an adequate amount of coverage for your all-mountain riding. 

Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

  • Spectron 3+ polycarbonate lenses
  • Wraparound frame
  • Curved, wrapping temples
  • Grip tech nose and temple pads
  • Designed to fit with helmet
  • Item #JUL002X

Tech Specs

Spectron 3+ (polycarbonate)
Nose/Temple Pads
Face Size
medium to large
Frame Dimensions
[lens/bridge/temple] 64 / 16 / 129mm
Recommended Use
Manufacturer Warranty

Tech Specs

  • Reviews
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Look fantastic on the bike!

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: one size
  • Height: 6'4"
  • Weight: 205lbs

I bought the Julbo Blast S3+ in blue-green at the same time as the Smith Drake, so I provide some comparisons here. My evaluation is based on wearing the Julbos on a hard 40 mi ride, an easy 20 mi ride, and subsequent hanging out for a few hrs in on a sunny day with mild haze to compare the Blasts and Drakes directly.

First, the Julbos look super-cool in the blue-green! They fit my somewhat large face quite well, the lenses are stunning aesthetically, and the frames are have a nicely sporty look without being obnoxious. Given my advancing age, their appearance is slightly too swept back, athletic looking for wearing about (e.g., window shopping, cafe dining), except maybe at the beach or other semi-athletic situations. The frames have a matte finish and flex very nicely. Contact points are very comfortable, and my GF said they "feel like air!" Overall, the Julbo Blasts have a high quality fit and finish, something I cannot say about the cheapish-looking arms of the Smith Drakes. Nonetheless, the Smiths look better on my big head, particularly for off-the-bike use and so are slightly better shade for general hangin' out.

On the bike, the shades are very comfortable, at least under the ideal conditions of my first ride. Optically, the glasses performed very well in my limited trial. At less than half the cost of the Smith Drakes, I found the lenses to be nearly equal to the polarized Smiths. My vague sense is that maybe the Smiths perform slightly better optically, perhaps due to subtle effects of the polarization, but there were no obvious differences, despite my efforts to find something, anything. The Julbos are quite competitive optically.

I compared viewing area and found important differences between the Julbo Blasts and the Smith Drakes. The Julbos provide increased peripheral vision because of their swept back shape. However, because of the close-fitting frames -- and likely exacerbated by my long face -- I can see considerably more of the top of the Julbo frame than I do of the Smiths. I didn't consider the view of the frames as any hinderance on the bike (or even realize it) but just noted the difference in my side-by-side comparison off the bike.

I cannot comment much on ventilation and performance in hot weather because the early fall conditions are already quite mild here. On a harder ride, I didn't have any issues with sweat dripping onto the lenses and pooling in the frames, but it was too cool to really evaluate how they would perform in the heat. As I mentioned in my review of the Drakes, the Smiths perform quite well with sweaty and rainy conditions because of coatings that seem to reduce droplet sticking.

In summary so far, Julbo Blasts are winners! Styling is great for athletics, fit is wonderfully comfortable, and optical performance is similar to glasses costing more than twice as much.

Comfortable, Lightweight, and Looks Good

  • Familiarity: I've put it through the wringer
  • Fit: True to size

Big fan of these! Really comfortable to wear and lightweight. There is a tint gradient from the top of the lens to the bottom, but it's really subtle and I didn't even notice it at first. I use these for mountain biking and they're fantastic. Sweating on an early morning ride doesn't fog them up and they stay put perfectly while not being tight.

Beware the partial tint

  • Familiarity: I've used it once or twice and have initial impressions
  • Height: 6'0"
  • Weight: 175lbs

Nowhere evident in the product description, the colored tint in these glasses is only in the bottom half of the lenses. I found this annoying--when you look out at an even toned expanse, the lower portion is colored (green in my case) while the upper portion is a light grey. When you look at the glasses from the front, the tint appears to be consistent through the entire lens, but when you put them on, it's another story.

Comfy and stylish

  • Familiarity: I've used it several times

I got these for cycling and have been very happy with them. Theye look great, stay on my face, and don't give me a headache when I wear them all day.

Not just for men!!!

  • Familiarity: I've used it several times
  • Fit: True to size

Super fun sunglasses that come in a variety of vibrant frame color/lens combo.

The lightweight, wrap around frame is ideal for many sports and fits very securely on. Good ventilation so they don't fog.

Note that this lens is NOT photochromic - it's a category 3 flash coated spectron lens that's all purpose.

My friend Susie Russell (instagram @susieq8750) modeling the blast in blue. As i said, they are not just for guys!

Not just for men!!!

Stylish sport shades

  • Familiarity: I've put it through the wringer
  • Height: 5'11"
  • Weight: 155lbs

I use these for running and mountain-biking. I got them in blue, and they look pretty slick. They work as both casual and sports shades. Good balance between wind and sun protection, and ventilation. Nice and light. Very comfortable, with not too tight a fit (sunglasses that squeeze my head tend to give me headaches). Usual top quality Julbo optics. The only downside for me was that the arms are completely straight, and I found that the glasses would eventually start to slide down my nose. Spent a few minutes with a hairdryer to put a slight bend in the arms, and problem solved.