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.
|Weight (pair)||1584g 
||Rope plus BOA, single throw latch|
||Carbon-reinforced Grilamid lower, carbon cuff|
||Intuition Cross Fit BT|
|Skimo Co Says|
|Usage||Skimo racing, training|
|Notes||Integrated gaiter means less wet-feet|
|Bottom Line||Next level Alien!|
|Compare to other Race Boots|
Questions & Reviews
I've tried the Scarpa F1 LT in a 29. Too small and a poor fit for me. Care to offer any feedback on getting a decent fit from a Alien 1.1 in a size 30?
For the record, I am 180, 68kg.
The only major fit problem I have with them is the midfoot/arch area, which feels a bit aggressive to my relatively flat foot, and if I run or otherwise do skimo intervals, my arches get really sore for a few days.
Since these seem more narrow, I'm wondering if I should maintain the F1 LT BSL ~295mm and size up to a 28 here, unless that might give me too loose of a fit? Foot length is 268mm, and width is 102mm with thin race socks on.
The Alien is a bit narrower than the F1 LT, I'd recommend possibly having a look at the DNA, which is a bit wider. I'd avoid getting a bigger, longer boot to accommodate for width. If you'd like, fill out our boot fitter and we can get you some recommendations!
I love the BOA, I love love love the weight, I heat molded and they're uber comfy . I think my only gripe is the walk/ski mode bar when it's up (walk), my pants get caught on it, and also when I'm ready to switch, I have to pull my pant leg up to the top of my boot then pull it back down, which in the spring I'll probably just leave pants rolled up but in powder I think it's particularly important to keep some of the snow off these boots since it's hard to imagine they're fully waterproof (although I haven't had wet feet yet)
One comment on sizing if it helps anyone because these seem small to me compared to other scarpas, my foot is 22 centimeters, I generally wear a 23.5 mondo (in other Scarpa boots), or 37.5/6.5 in running shoes (sportiva, scarpa, salewa), 37 in sportiva mtn boots. These I got a 24 and they fit perfectly after a heat mold (with the lightweight Darn Tough merino ski) but there's no additional room for thicker socks when it's cold.
I currently have the Fischer Traverse CS Boot in 25.5 (great fit) and I was wondering how will this compare with the Alien 1.1 in size 26?
So my main question about the Aliens 1.1 is whether the gaiter effectively blocks outside moisture from penetrating the boots and wetting out your feet. I want a very light boot that simply has me managing my sweat.
The Alien 1.1 isn't perfect for staying dry in deeper snow as it is a tongueless gaitered race boot, but the taller gaiter is fully sealed to the scafo and will do much better than your OG Alien 1.0 at keeping out snow and moisture.
Any other suggestions for big, but lightweight boot? It seems that most boots in this category only come up to size 30.
Finally, for the first time in skimo history, there may be size 31.0 race boots next season: the Dynafit DNA and Mezzalama are planned to be offered in that size. Note those would also be available in size 30.5 with the same shell, and they are narrow and seem to run a bit small.
The foam pads that included in the box are intended to help with filling out areas that are too high volume for your foot. For example, adding foam behind your calf in the cuff to ensure a more snug fit in the cuff area. Another option could be using that pad in the ankle/heel area to increase heel hold. If you have further questions, feel free to reach out to email@example.com!
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!
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
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.
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