Free 2-Day Shipping on Orders Over $50*

Detail Images

  • Julbo - Through the lens
  • Julbo - Side
  • Julbo - Strap
  • Julbo - Top
  • Julbo - Front
  • Julbo - Front
  • Julbo - Top
  • Julbo - Side
  • Julbo - Front
  • Julbo - Through the lens
  • Julbo - Strap
  • Julbo - Strap
  • Julbo - Case
  • Julbo - Explorer Alti Spectron 4 Sunglasses -
  • Julbo - Through the lens -
  • Julbo - Side -
  • Julbo - Strap -
  • Julbo - Top -
  • Julbo - Front -
  • Julbo - Front -
  • Julbo - Top -
  • Julbo - Side -
  • Julbo - Front -
  • Julbo - Through the lens -
  • Julbo - Strap -
  • Julbo - Strap -
  • Julbo - Case -

Current Color

  • Julbo - Explorer Alti Spectron 4 Sunglasses -

Julbo Explorer Alti Spectron 4 Sunglasses

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Lifestyle Sunglasses we have in stock.

View Similar Products

13 Reviews


Take on the most demanding mountains in the world with the professionally designed Julbo Explorer Sunglasses protecting your eyes from the high-altitude sun.

Julbo gave their high-tech Explorer Sunglasses incredible Alti Spectron 4 Lens that provide 95% visible light reduction to protect your eyes on high-altitude mountaineering trips. Take these Julbo glacier glasses to Rainier, Alaska, or even the Himalayas. Designed with help from Chamonix mountain guides, these glacier glasses features removable side shields and a wrap-around design that rivals the protection offered by goggles in high winds and blowing snow. The Explorer Sunglasses also include a removable stretch headband to keep them in place and let you drop them to your neck when you crawl into a tent. Julbo added frame vents to reduce fogging because you can't climb if you can't see.

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.

  • Item #JUL0044

Tech Specs

Face Size
Recommended Use
alpine & expedition
Manufacturer Warranty

Tech Specs

  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?


  • Familiarity: I've put it through the wringer

Originally, I bought these following eye surgery (PRK). I had ultra light sensitivity for weeks afterwards, I needed top protection, these did an amazing job.

Then I decided to take them hiking at 9000 feet and I never turned back: they have become my go to hiking/backpacking sunglasses. I never get red eyes or strained eyes, I can tweak the branches for a custom fit, I can see clearly with zero glare.

Like I said... perfect.
And now that my vision has been corrected to 20/15, they're even better. :D

Great protection

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

I took these on Kilimanjaro and Elbrus with me and they were great. I never had to squint, even on the snowiest conditions in the brightest snow.

They aren't much to look at so I ended up getting a different pair of goggles for myself, however, now that my young daughter is starting out mountaineering with me, these will be what she brings as I believe the protection they offer to be superior.

After 5 trips they are still in one piece and scratch-free.

Protect your eyes.

  • Fit: True to size

I took a pair of Julbos with Zebra lenses up Rainier and in bright sun my eyes were really overwhelmed. They just couldn't get dark enough. I found myself resting my eyes closed periodically and was concerned about how well my sight would persevere.

So for my next trip i picked up the Explorers. I made the buy for two reasons: the SPectron 4 lens is as dark as things get, and the Explorers have LOTS of coverage. I wasn't always convinced that the frames on my glasses were large enough. Now, I can go up with confidence that i can tackle a variety of conditions.

I'll probably bring both glasses and make the call based on weather before heading up.

The Explorer with Spectron has great coverage with removable blockers. They still aren't fashionable, but they work. That's more important than anything else. They also feature a nose clip if you want to add the nose cover.

The case is spacious enough to put my other glasses in it. I'm a little bummed there was no cleaning cloth or bag. fortunately i have lost enough pairs of glasses to have a spare.

The lens is dark. Really dark. Perfect for super bright, blue bird days at elevation.

They fit my average sized face nicely and reach my uneven ears pretty well.

I have not tested their resistance to fogging yet. Hoping that doesn't turn out to be a problem.

They were great most of the time

    I just returned from a 3 day rainier summit. We had great mixed snowy, windy, sunny conditions on the first two days and a white out on the decent. I wore these the majority of the time.

    The Goods: As for protection, you couldn't go wrong with the XLs. The Standard on Rainier; sunscreen, lip balm and eye protection. The UV rays were crazy! Glad I had these.

    The Bads: Sometimes they get foggy... There were several moments on the climb that I literally couldn't see my footing. I couldn't stop because I was roped up with my team so I had to take them off! I noticed the fog issue was happening when I was in a very tough, endurance segment of the climb AND it was foggy/snowy out. I never had the fogging issue when it was sunny out.

    They would not stay on the top of my nose: I have never has this issue before but the glasses would slightly fall below the top of my nose. I was constantly pushing them up in the center of the frame (like a nerd, i guess). The adjustable back of the frame didnt seem to fix the issue so I had to tighten the retainer straps. As a result, I got this strange neck strain....

    Basically, they work great most of the time. While they will protect your eyes very well, they will fog, maybe even in crux situations.

    I did notice that several people were wearing these on the mtn including one of our guides. I

    They were great most of the time

    Very nice glasses

      I loved these glasses, the filter is very good for the brightest enviroments (I tried it over snow and over fresh water in sunny days).

      I put 4 stars and not 5 because the case in which they send the pair I bought (The photo I uploaded) is not the same as the one showed in the photo showed in the detailed views, and is a lot bigger than that one. Even though the case I got is very good and protects perfectly the glasses is kind of bulky and when you are backpacking and need to save space, it just doesn't do the work...I upload a photo for you to see the case.

      Very nice glasses

      Explorer with spectron 4 lens

        I have had a pair of these glasses for several years. My eyes are very sensitive to light. I use these on the water, in the mountains, on bike (motorized and pedal) and anytime I am outside. They are amazing. Easily the best glasses I have ever owned. They are equal to the two pairs of Julbo micropores (glass lenses) I also own. I was worried about the lens durability of the spectrons but they have been great. They are much lighter than the micropores. I find myself wearing these more than the micropores. I will definitely buy another pair when these are done.


          Have not gotten them out in the mountains yet or even out of the house yet tbh. However these things fit like a glove and seem of a fairly good quality. I think i will really like them?

          So far so good, just buy them if you think you want them. So long as they fit your face these are the business!! If not return them...


          Keeps out the UV's

            These are fantastic glasses. I have tried all the different ones and when I look up, down, left, right along the periphery of my vision, these let in the fewest UVs. When I'm up high on a mountain I don't want to take any chances with my vision. The fit is great too. I have a low bridge on my nose so glasses love to slip down, especially when I glance down to check my footing. The adjustable ear hooks and rubber cinch keep these in place even when my face is sweating. I got the Spectron 4 polycarb lens because I didn't want to risk glass shattering on a fall. The white also looks sleek and cool. Great glasses - highly recommended.

            Mountaineers Shades!

              Love these for general mountaineering and expeditions...fits a beko really well too! Recommend you replace the rubber cinch with a barrel lock to keep them locked on your face, it will get loose after a while. Good value for money from Julbo in general...

              Julbo Explorer Glasses

                When I received these glasses from Backcountry I noticed that there was some sort of reflection on the inside of the left lens. So I cleaned the lens but it was no better. I then called Julbo USA and ask if knew of any problems and to see if they could correct the issue. I was going to be traveling to the Atacama desert in Chile in just two days and needed a good pair of glasses.I had ordered the glasses from Backcountry and got them in just two days, thanks for the fast shipping. The guy at Julbo could not determine the problem by my explaination. So, he said he would send me a new pair next day shipping so I would have them before I left for Chile, and I could send the pair in question back when I returned from my trip. So the next day I got the glasses and they were perfect, no glare or reflection, and when I returned from my trip I sent the others back to Julbo. The UV is quite high there, we were working at 10,000 to 16,000 feet elevation in the desert and the glasses worked great, I was very glad I had them. I have a small face and they fit very well with the bendable ear hooks and they look cool too. I can not say enough about the exceptional customer service I got from Julbo. The glasses are great and Julbo's customer service should be the model for all companies. If you think these glasses are a little expensive don't, you are getting what you pay for, a great product from a great company

                Would you recommend these glasses for...

                Would you recommend these glasses for general outdoor use and paragliding?
                These should be strong enough and block out the wind, also offer good sun protection. Pretty tempting :-)

                I recently purchased julbo explorer alti...

                I recently purchased julbo explorer alti arc glasses which are not polarized, I want to use them for skiing.
                I considered the cameleon lens which are polarized, however, my past experience with polarized lenses is that they dont work well on snow in sunny conditions as you cant see the terrain in detail well enough, any thoughts or experience would be welcome?

                I have the spectron 4 lenses. I use them primarily for mountaineering. I like the versatility of this lense as it functions well in daytime sunlight as well as flat light, cloudy conditions where you still need eye protection and good clarity. I have not noticed a dramtic difference in not having the polarization. my 2 cents.

                Anyone run or biked in these??... looking...

                Anyone run or biked in these??... looking for something that would cover it all..

                How scratch resistant are the lenses on...

                How scratch resistant are the lenses on the explorer with the spectron 4 lenses?

                Any ideas when you will have stock? I need...

                Any ideas when you will have stock? I need a pair for a trip to Palmer Station...

                would this type of glacier sunglass be...

                would this type of glacier sunglass be suitable for Mount Kilimanjaro?

                Just used these on my Kili climb and they worked very well. There is not a whole lot of white stuff up there unless you are planning to traverse the Heim glacier, so you could probably get by with a less expensive pair. I was very happy to have these and you will look cool in the photos.

                Are the #JUL0044 plastic or a glass...

                Are the #JUL0044 plastic or a glass lens?


                WOULD THESE WORK