Skimo Co
SkyRun

SCARPA Alien 1.1 Boot

$1599.95 $1500.00

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  Size Chart

A fixture at the head of any skimo race, the original Alien 1.0 established a higher performance-to-weight benchmark. It’s difficult to imagine improving on a winner like this, but no one is arguing the reformulation doesn’t do just that. We’re calling it the Alien 1.1 (SCARPA still calls it “1.0”, but hey, that’s confusing. Maybe the Alien 1.0 v2?).

Keeping the full-carbon cuff, single throw ski/walk mechanism, and BOA instep closure that gave the 1.0 its racing and adventure successes, SCARPA smartly didn’t change what wasn’t broken. Instead, they’ve taken the minor areas of weakness and turned them into strengths, which is sure to continue this boot’s legacy performance. The lower is now made of Carbon Grilamid LFT material (from the Alien RS) which brings levels of stiffness and support at a low mass. The BOA closure system remains over the instep but is now internal, providing a closer fitting and more secure closure over the foot. A pain point of the original 1.0 was the difficult-to-enter sock-style liner; SCARPA has replaced it with a Crossfit Intuition BT liner featuring a full-length tongue that provides additional support and comfort. Some folks will be most excited by the integrated gaiter which increases the weather resistance and decreases instances of soaked feet. The SCARPA Alien 1.1 is an even better ski boot than the original, at a better price to boot (yay, puns).

  • Carbon Grilamid LFT shell increases stiffness and responsiveness.
  • Integrated gaiter keeps your feet dry and warm, a novelty!
  • Vibram UFO sole provides lasting traction on ridges and boot packs.
  • Internal BOA system provides better foot hold for precise edging.
  • Proven Alien ski/walk lever is still the quickest way to transition.

Update 2021/22: An updated color scheme and slightly thicker liner for comfort and performance will accompany the model.

Specifications
Weight
convert to ounces
792g [27]
822g [28]
Weight (pair) 1584g [27]
1644g [28]
Buckles   Rope plus BOA, single throw latch
Boot Sole Length   262mm [24]
271mm [25]
279mm [26]
287mm [27]
296mm [28]
305mm [29]
313mm [30]
Binding Compatibility   Tech only
Cuff Rotation   75°
Forward Lean(s)   9°, 13°
Specs Verified Yes
Design
Materials   Carbon-reinforced Grilamid lower, carbon cuff
Liner   Intuition Cross Fit BT
Sole   Vibram UFO
Skimo Co Says
Usage Skimo racing, training
Notes Integrated gaiter means less wet-feet
Bottom Line Next level Alien!
Compare to other Race Boots

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Questions & Reviews

3/6/2022
Question from marc-andre perrault
 
Hi, I already have the pdg2 size 26 and I’m looking for another boots. My feet are 107cm large and 25,8 long. What is the best size for me and to you think this boots are large enough! Thanks
3/7/2022
Answer from Tristan M
 
Hi Marc-Andre,

The PDG2 has a pretty high volume fit for a race boot. Also, based on your foot measurements, it looks like you have a foot on the wider end of the spectrum. The Alien 1.1 has a narrow last width, and would not be the best pairing for your feet. If you are on the lookout for a new set of skimo race boots, I would check out our Boot Fitter tool!
Answer this question:

2/23/2022
Question from Thomas
 
Hey,
Are they some important changes between the 1.1 "yellow" version (the last photo on this page) and the blue/orange one ? I'm a bit confused about their released date (is 2021/22 the blue/orange version ?)

I'm looking to upgrade from loved but old alien 1.0

Thanks !
2/23/2022
Answer from Zak M
 
Hey Thomas, the blue and orange version is the current model. The only differences between the two versions will be the color and a slightly different gator material reinforcing the BOA.
Answer this question:

2/19/2022
Question from Kevin
 
I have size 29 in these and right foot is perfect, but left could use just a touch bigger liner. Is it possible to get a 29.5 liner? Do they make that and how do the shells break on these boots? I think the 30.0 would be too big.

Thank you
2/19/2022
Answer from Julieana
 
Hey Kevin,
If the boots are brand new, I would suggest heat molding the liner with a full toe cap to give the toes on your left foot a little space. Scarpa uses intuition liners designed to be heat molded even in their race boots, so if your toes are just a bit snug, a heat mold might just do the trick for you. In these boots there are no half sizes, so you would have to jump up to the 30.0 if you need more than a few millimeters of space.
Answer this question:

2/8/2022
Question from PAU
 
IS IT POSSIBLE TO USE A TRADITIONAL LINER (THE INTUITION FOR EXAMPLE) ON THE SCARPA 1.1?
2/8/2022
Answer from Brett S
 
Thanks for reaching out, Pau. For this boot, you'd be better off with a Palau Ultralight Race Liner, which is a bit more traditional than the bikini style liner that comes with the boot.
2/8/2022
Answer from jbo
 
Hi Pau, the cuff flaps aren't long enough to encompass an Intuition liner which is really thick in the cuff. The cord will kinda get caught with the flaps going the wrong way.
Answer this question:

1/17/2022
Question from Robert M
 
Hi. I wear a size 26.5 in the Alien RS, what size should I get in the Alien 1.1?
1/17/2022
Answer from jbo
 
Hi Robert, to our knowledge, the RS was only available in whole sizes. You would be the same size 1.1 that you are in the RS, noting it's a touch narrower and lower volume so has the potential to not fit if you're tight in the RS.
Answer this question:

1/14/2022
TZed (downright abused product)
 
I have used the first 1.1 version and now the new color scheme which actually made significant changes to the boot itself.
I had issues with the cord clips on the first version. Specifically how they would catch on the carbon cuff and get bent out of shape. The new version seems to fix that. The clip is much stronger appearing and I have been unable to get it to catch when rubbing the boots together.
The gaiter also seems to be more durable. I had issues with wear on the gaiter and mild tearing of the velcro, but the new version improves the velcro where I don't expect it to tear. One problem with the gaiter however is that it is less stretchy and so makes boot entry and exit a bit more contorted.
Overall a big improvement and worth the upgrade
2/23/2022
Reply from thomas b
 
Hi TZed,
Thanks for your feedback. May I ask specifically what versions are you referring to ? Is the first 1.1 the one with the yellow boa and the new color scheme the one with the orange boa and blue/orange on the sides ?
Would you recommend the latest one ?
Thanks !
2/23/2022
Reply from TZed
 
I am referring to the first 1.1 as the version described on skintrack here (yellow and black) http://www.skintrack.com/gear-tech/new-scarpa-alien-1-0-alien-rs/
And the new color scheme as this years model(orange and blue)

I do recommend the blue and orange version. They have been going strong for me
Comment on this review:

12/19/2021
Jordan D (used product regularly)
 
For their intended use, they're an amazing piece of technology

I pushed them, skiing 90mm skis in the summer in couloirs. For this purpose I was much happier in a bigger boot, at least an Alien RS. I felt the lack of material in the front of the 1.1

The total lack of ankle resistance on the up is amazing, but the lower poked me in my Achilles if I took too large a stride

Overall though, for what they are, it's amazing what they can do. A little taste of the future, I think
Comment on this review:

11/18/2021
Question from Joe H
 
Hey crew! I've had a pair of these for two years and I LOVE them, but I have a pair of liners that are absolutely toast. Do you know anything about the replacement liners for the 1.1s? I can't find them on Scarpa or on your site. Do they exist in the US?
11/18/2021
Answer from Tristan M
 
Hi Joe,

We do have replacement liners for your beloved boots! Depending on your size, we may or may not currently have them in stock. Take a look at our Scarpa Liners listing. The liners that you are looking for are the Alien 1.1 liners. If your size is not in stock, reach out to help@skimo.co, and we can chat options!
11/18/2021
Answer from Joe H
 
Aha! Excellent, thank you so much!
Answer this question:

3/18/2021
Question from Kroman
 
Hi,

I wonder what is the difference between 1.1 and cheaper, standard Alien.

Weight difference is obvious, but in terms of stiffness, ski performance and durability - do they differ noticeably?
3/18/2021
Answer from Tristan M
 
Hi Kroman,

The Alien 1.1 and the standard Alien have the same lower shell in both material and shape. However, the boots do have significant differences:

- The Alien has a full liner, while the Alien 1.1 has a bikini liner with a full tongue which increases the rearward ease-of-motion. This difference in liners creates a nuanced difference in fit, and means that the standard Alien will be slightly warmer.

- The Alien 1.1 has a carbon cuff. This saves weight, and makes this boot the stiffer of the two. However, carbon makes the flex less progressive. On the other side of things, the standard Alien will be softer, but it will have a more progressive flex.

If you have any further question, I would recommend filling out a Boot Fitter!
Answer this question:

10/13/2020
Question from Stones
 
Hi guys! I understand these boots comes without a footbed. Are they intended to be used without footbeds, or do you recommend to get some custom ones?
10/13/2020
Answer from Zak M
 
Hey Stones, basically it all depends on how well the boots fit your feet. If you have them sized a bit tighter as some racers do, there might not be all that much room in the boot to include a footbed which could possibly be why Scarpa didn't add one. So in essence yes, you can include a custom footbed in the boot and depending on the fit it would not detract from the boots overall functionality.
Answer this question:

2/13/2020
Question from Al A
 
How does the Alien 1.1 compare for regular lightweight ski touring and technical ski mountaineering (non-racing) compared to the Alien RS? I have a pair of Alien 3.0s for racing that I really like, but I'm hesitant to do big days in the mountains with them. I'm looking for a boot that's still really light and can drive a 90-waist ski (Dynafit Carbonio). Is the Alien 1.1 too 'race-oriented' or will it excel for this use?
2/14/2020
Answer from Patrick C
 
Al,

In considering your skis at 90mm underfoot I would suggest the Alien RS as the more appropriate boot. It will also give you a little more protection from the elements on those long days playing in the mountains. I hope this helps!

Patrick // Skimo Co
3/31/2020
Answer from Andrew
 
I haven’t skied the alien RS but I also race in the alien 3.0 and use the alien 1.1 as my touring boot (mainly with a 89mm underfoot ski) and find it to be a great lightweight touring boot with adequate warmth, coverage, durability and ski performance.
Answer this question:

2/25/2019
Question from Manuel S
 
Hello from Switzerland :)

I've had the Alien 1.0, but due to the carbon "triangle" ond both sides in the lower shell, I couldn't punch my area of pressure. Does anybody know whether there are similar "sheets of carbon" in the lower shell or ist the whole shell out of this matt black "carbon/grillamid mix"?

Cheers Manuel
2/25/2019
Answer from jbo
 
Hi Manual, there are no sheets of carbon, but SCARPA does not recommend punching this material.
Answer this question:

2/20/2019
Question from Juraj
 
Hi do you have some problems with boa rope? i break boa rope second time in one month on right boot and i am not only one i known with this problem.
2/20/2019
Answer from jbo
 
Hi Juraj, we have not seen issues with the BOA on this model. If you have a low instep and are really cranking it down, that could be a problem.
Answer this question:

2/9/2019
Question from Justin A
 
Have you had any problems with the medial side hooks? I bent mine in my first outing in an accidental scuff of one leg against the other. I was able to bend it back, but i’m sure this will happen again and that hook will eventually fail. It’s in a pretty bad spot and could likely be moved back and out of the way, much like the lateral side hook. Anyone have experience with this? I can’t be the only one to experience this. Any official Scarpa-endorsed fixes? Thanks!
2/9/2019
Answer from Matt P
 
Hey Justin,

I have the same boot and had the exact same issue last week. I did the same thing, bent it back, and hopefully will suffice without breaking off. I can't think of anything else to do in the meantime to beef it up. Cross my fingers and hope it doesn't break!

Matt
11/16/2019
Answer from Ryan P
 
Hello, has there been any solution to this issue? I have heard of this problem from multiple sources. I am a little hesitant to purchase these boots because of this. It seems like catching this hook during a race would be a likely scenario.

-Thanks
11/16/2019
Answer from Justin A
 
One thing that has worked reasonably well for me it to run a small strip of duct tape over that spot on each boot prior to each outing. It smooths the edge and seems to prevent catching the hook. Not a great fix, but pretty quick when gearing up.
11/16/2019
Answer from jbo
 
Yes, it is possible to catch the medial cord hooks with your opposite leg and cause bending. Usually, it can still hold the cord even after several blows. It works to bend them back, but repeated manipulation may lead to failure. We have replacement hooks and rivets for that situation.
11/16/2019
Answer from jbo
 
Thanks Justin! Would love to see a photo of how you apply the tape.
8/28/2020
Answer from TZed
 
FYI I have also had this problem three times, twice bent it back and the third time had scarpa replace the hook. I wouldn't worry about it in a race unless there was lots of running. It has always happened when running/fast walking mountaineering
Answer this question:

2/6/2019
Question from Aaron O
 
One other question - the front of the upper cuff in the picture you have appears to be carbon, on the Scarpa website it's plastic? How does that work? Do you have a special stock of extra extra carbony Aliens? (This would not surprise me.)
2/6/2019
Answer from Matt P
 
Hey Aaron,

The boots comes with a plastic front cuff, not the carbon front cuff that is shown in the photo. I ski this boot and love the plastic because it doesn't crack like the old ones when cinching down. Plus they ski great. Hope this helps.

Matt @ Skimo
Answer this question:

2/4/2019
Question from Aaron O
 
If my forefoot is closer to 102mm, is it possible to punch out the extra space in this guy with the carbon? Also, if I wear a 25.5 in the new F1, should I be a 26 in this one?
2/7/2019
Answer from Matt P
 
Hey Aaron,
If you are referring to punching out the Alien 1.1, it is not recommended by the manufacture; however it can be done. I have done it on my own boots without a problem.

Thanks.

Matt
12/14/2020
Answer from Manuel S
 
Hey Matt

although scarpa does not recommend to punch it..how did you do it? With a heat gun or with these "punching machines" where the shell can be mounted to and then e.g. a heated metal ball is pressed into the shell?

Cheers from Switzerland, stay safe!
Manuel
12/15/2020
Answer from Matt P
 
The shell is heated with a heat gun and then manipulated with a manual machine press. I have not used the heated ball as I am afraid it would punch through the shell. With the head gun and press, I was able to get enough pressure and specific heat to create the punch I was looking for. Most shops can do this for you, and I would definitely ask someone with experience before you fork over your boots. Good luck!
12/16/2020
Answer from Manuel S
 
Ok, thanks a lot for your helpful answer (again) :D
Cheers Manuel
Answer this question:

1/5/2019
Question from Jonathan
 
How is the fit of these compared to the Alien RS? Mostly interested in the lower shell length and whether to order same size in Alien 1.1 as Alien RS?
1/5/2019
Answer from Trace Leches
 
Hey Jonathan. They're pretty dang similar. This boot does not include a footbed though, so out of the box it fits very differently than the Alien RS which does include a footbed. Once a footbed is installed though, they're very similar. I wear a 26 in both boots.
1/6/2019
Answer from jbo
 
Hi Jonathan, I have the same size of each. In my case, I feel the 1.1 is slightly narrower and shorter than the RS, but not nearly enough to change sizes.
Answer this question:

12/26/2018
JDT (used product a few times)
 
Since my size just recently arrived at Skimo, I have only used these a few times. My other boots include the original Alien 1.0 and the TLT7 carbonio. I bought these because my Alien 1.0's have had a fruitful life of racing and touring, and are now allocated to a training and rock boot, as they are getting a bit sloppy. Here is my comparison of the new Alien 1.1 to the excellent aforementioned boots....

Alien 1.1 vs 1.0: The new boot is stiffer (at least compared to my well-used originals)!! They ski better with only a marginal weight penalty (about 40 grams per boot in size 25). Compared to the original, the new 1.1 lower is quite a bit stiffer. I believe this is the primary performance upgrade, as there is essentially no lower boot flex or cuff bowing. In addition, the boa wires are internal and hold the foot much better than the original's exterior wires. Due to these modifications, the new boot is also more comfortable. With the original 1.0, I had to crank the boa as tight as possible to ski well. This resulted in pinching while skinning. The 1.1 does not require maximum boa tension to ski well, and my feet have not experienced discomfort due to over-tightening. The innovative 1.1 liner also enhances performance. Despite being a race boot, the 1.1 tongue is quite beefy and helps not only with forward comfort, but also with enhanced performance. Conversely, there is no thick liner on the back of the calf. Rearward calf pressure directly onto the stiff carbon cuff translates into shockingly instant power and control. The 1.1 front cuff also rides slightly higher on the shin which makes the new boot feel closer to a "real ski boot." Some will argue that the 1.1 does not articulate as freely as the original (due to the beefy tongue and the friction with the new boot's gaiter). A side by side comparison supports this notion, however once I started skinning I never said to myself "gosh, these are unpleasantly stiff to walk in." Additionally as the tongue and gaiter have broken in, the friction has improved. These aren't full carbon boots with a bikini liner, but they are still race boots. These will definitely perform better than the originals in races with long, challenging descents or with varied conditions. BTW, I toured and broke trail without gaiters or stir-up pants and my feet stayed dry and warm!

1.1 vs TLT7 Carbonio: The TLT's are a more substantial boot. Full coverage, full liner, heavier. While the TLT7 may be amongst the lightest touring boots, and the 1.1 is a more substantial race boot, the weight and articulation between the two are quite noticeable. The Carbonios are a stiffer, heavier boot, and while skiing rough terrain this translates into less deflection and less skiing effort (you can't cheat physics). However, the 1.1 are pretty comparable. My current touring skis are the Voile Objectives and the Dynafit Denali's. For my purposes, my lightweight touring skis, and my style of skiing, the 1.1's are more than adequate and the downhill performance is closer to the TLT7 than to original 1.0.

I will probably keep all three so as not wear down the new boots too quickly. The 1.0's will be a good training and Tues night race boot. The TLT7 is also a fantastic downhill, well-articulating, comfortable, and lightweight boot. I'll likely use these on deep powder days with wider skis when trail breaking is slower and there is a potential to get snow into the boots...or on really cold days. However, for those who are race /speed touring/scrambling oriented the 1.1 is possibly the best "quiver of 1" out there, and I imagine would be adept for most skimo applications.
Comment on this review:

12/23/2018
Anonimo (used product a few times)
 
With the goal of climbing faster, I recently purchased these boots. As the very satisfied owner of a pair of Dynafit TLT7 boots, I was well aware of the challenge of finding an alternative that strikes the balance between lightweight and performance. Initially, I considered the Dynafit PDG2 given my historically positive experience with the TLT line. I decided to try on the newest iteration of the Scarpa Alien 1.0 (or 1.1 as it has been dubbed) as well given its similarity in weight. The boot is very slightly lighter than the PDG2 and was notable stiffer. Fortuitously, the size 28 was within 0.25 mm of the boot sole length of my size 27 TLT7 boots meaning that I wouldn't have to remount the fixed bindings to my skis. My brand loyalty evaporated in an instant.

I have had the opportunity to ski these boots on a pair of Ski Trab Magico skis and a pair of La Sportiva Vapor Sveltes in variable conditions that have included boot deep fresh powder, dust on crust, consolidated powder, sun crust, sastrugi and packed powder at the resort. I can report that they are just as effective as my former pair of boots, however, have satisfied my aforementioned goal of permitting more rapid ascents. I cannot comment upon their durability as I have only skied with them on just under ten occasions thus far. I am also unsure of how they will perform in spring type conditions. The only drawback that I have noticed is that the carbon cuff seems to comparatively abrade my ankle a bit more when sidehililng in steeper terrain. This makes sense as the boot lacks a traditional liner that extends to the top of the boot. With that said, I am optimistic and look forward to utilizing them as my sole touring boot henceforth.
Comment on this review:

11/28/2018
Question from Dawes
 
It is my understanding from talking to Scarpa people at SIA that the Grllamid lower used in the RS (and now the new Alien 1.0 or 1.1 as you are calling it) is even more difficult to punch out to accommodate experienced feet than the non-Grilamid old Alien 1.0. Have you found this to be true? I read the review by Teague and he didn't mention any punching. He must have narrow feet.
11/28/2018
Answer from jbo
 
Hi Dawes, SCARPA recommends against punching the RS or new 1.0. That said, folks have done it and we're not aware of any issues. The old Alien was punchable in some areas but it had sheets of carbon in some areas which were literally not punchable.
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Model: Alien 1.0

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