Last tested
2024
Status:ongoing
2025

Alien 1.0

People's choice Race
Scarpa's semi-carbon boot: less extreme, more progressive, walks almost like a full carbon and great for speed touring
  • Buyer’s Guide reviews
  • In words
  • Technical specifications

    Buyer’s Guide reviews

    Performance by context
    Ascent
    Skiing
    Walking
    Climbing
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    The charts show our impressions from testing
    Product info
    Category average
    Recommended use
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    Recommended level
    Technical Level
    Beginner
    Intermediate
    Advanced
    High level
    Weight
    lightmedianheavy
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    In lab
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    In words

    Intro
    It may have the same ski/walk mechanism and BOA dial, but the similarities with the Alien 4.0 end here. Scarpa's semi-carbon model is altogether different in terms of responsiveness and overall concept. It's presented as the missing link between the race and fast & light segments, thanks to a sturdier liner with a stiff tongue. Though less extreme, more forgiving and comfortable, it remains a solid choice at a competitive level—just below the top of the results table.
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    product
    Walking
    Similar to the Alien 4.0 in terms of walkability, though it doesn't reach the same heights in terms of smoothness and performance of the top-of-the-line boot as the sole is less rounded. On the plus side it has more internal volume, which is well distributed to let the foot drive and breathe at the same time. The cuff rotation approaches that of a full-carbon model, with a nice balance of fore and aft movement. Its raison d'être is Grande Course races, fast & light escapades and sprints the finish line—unless you're up there with the likes of Robert Antonioli.
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    Lab
    As with the Alien 4.0, you just need to tip the cuff back; entry is pretty easy with the liner in the shell. In terms of fit, it's more accommodating than its sibling, though still technical. The liner is low like a bikini liner at the back and higher at the front, with a nice firm padded tongue that is longer than the cuff, definitely one of its strong points. The ski/walk mechanism keeps it nice and stiff in ski mode, and free and easy in walk mode, and is easy to handle and engage.
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    Skiing
    A semi-carbon behaves differently to a full-carbon boot on the downhill, and the Alien 1.0 is probably the most balanced for a number of reasons. The stiff, padded tongue is supportive and stops the plastic from pinching. Then there's the effective forward lean that works together with the low, forward pivot point on the shell. Not as stiff as a full-carbon, it's softer, yet progressive, flexing at the right moment. You need to know how to manage it in terms of fatigue and skiability. And if you get it right, you'll benefit enormously, both on and off the race track. There's a reason that it's the top choice for elite skiers during training or on their own time.
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    Technical specifications

    LINER MATERIALS
    carbon fiber
    SHELL MATERIALS
    Carbon Grilamid LFT
    INSERT TYPE
    Quick-Step-in
    Buckle description
    race-ready ski/walk mechanism with Dyneema cable + BOA
    Sole description
    Scarpa UFO By Vibram
    Liner description
    Intuition BT
    No. of buckles
    2
    Lean forward
    9°/13°
    Available sizes
    24–30 mp, no half sizes
    Released in
    2021
    Made in
    Italy
    Price
    1099 €
    Declared specsMeasured by us
    We measured the measure 27 to get all the details
    785 gr
    Individual weight
    XXXXX
    N/A
    Liner weight
    XXXXX
    N/A
    Shell weight
    XXXXX
    287 mm
    External shell length
    XXXXX
    N/A
    External shell width
    XXXXX
    N/A
    Inner shell width
    XXXXX
    N/A
    Pin distance
    XXXXX
    N/A
    Force to 20° back
    XXXXX
    N/A
    Force to 20° forward
    XXXXX
    75 °
    Cuff ROM
    XXXXX
    N/A
    Maximum cuff height
    XXXXX
    N/A
    Maximum tongue height
    XXXXX
    N/A
    Maximum forefoot width
    XXXXX
    N/A
    Maximum ankle width
    XXXXX
    N/A
    Sole thickness at toe
    XXXXX
    99 mm
    Last
    XXXXX
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