ALIEN

Sale price $674.25 CAD Regular price $899.00 CAD
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(1 Reviews)

Light, fast, and efficient, the Alien is built for ski mountaineers who push higher and move faster with every step. Designed for ambitious backcountry skiers and racers alike, the Alien brings speed-focused engineering to steep ascents and precise descents. A Carbon Grilamid® LFT shell keeps weight low and flex consistent in cold conditions, while the Speed Lock Lite walk mode delivers a 72-degree range of motion for natural climbing strides. The BOA® Fit System ensures a secure, glove-friendly fit that fine-tunes comfort and control, and the Fast Buckle closure simplifies transitions from climb to ski. The Intuition® Race liner provides warmth, anatomical comfort, and a responsive fit for long missions in alpine terrain. Underfoot, the Vibram® UFO sole offers traction and stability on rock, snow, and ice.

 

From pre-dawn ascents to fast, technical descents, the Alien defines efficient movement in the high mountains.

 

  • Carbon Grilamid® LFT shell keeps weight minimal while maintaining stiffness and responsiveness for confident skiing.
  • Speed Lock Lite walk mode provides a 72-degree range of motion for efficient uphill travel and powerful downhill control.
  • BOA® Fit System delivers precise, glove-friendly micro-adjustments for a secure and comfortable fit.
  • Fast Buckle closure makes transitions quick and intuitive between touring and skiing modes.
  • Intuition® Race liner offers warmth, a heat-moldable fit, and long-lasting comfort on alpine missions.
  • Vibram® UFO sole ensures reliable traction on icy ridges, rocky traverses, and variable snow conditions.
Color
Color:
Carbon/Azure
Size
Only 2 units left
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Features
Features
Feature BOA® FIT SYSTEM
BOA® FIT SYSTEM
The patented BOA® Fit System consists of three integral parts: a micro-adjustable dial, super-strong lightweight laces, and low friction lace guides. Each unique configuration is engineered for effortless precision delivering a connected, fast, customized, and durable fit, and is backed by The BOA® Guarantee. The Alien system is an exclusive floating system located under the waterproof fabric cover that contracts downwards on the instep of the liner as the dial is tightened, precisely controlling volume and fit.
Feature GRILAMID® FG LFT CUFF
GRILAMID® FG LFT CUFF
Stiffness and rigidity courtesy of a more economical solution versus full carbon fiber. The cuff features overlapping front panels, for good wrapping over the front of the shin and is closed by a single action Dyneema® cord interfacing with the ski/walk mechanism to speed transitions.
Feature Alien - F21 - Product Feature
Technical Specs
Technical Specs
Size Options : 24 - 30 (whole sizes)
Weight Reference : 870g; 1lbs 14oz (1/2 pair size 27)
PFAS : PFAS Compliant
Liner : SCARPA® Tour Lite (Intuition)
Last : 99mm
Outsole : Vibram® UFO
Shell : Carbon Grilamid® LFT
Cuff : Grilamid® FG LFT
Tongue : Synthetic
Closure : Cord + BOA® Fit System
Flex : 95
Forward Lean : 9° - 13°
Ski/Walk Mode : Speed Lock Lite
Binding System : TLT
OPTIMIZED TOURING PIVOT : 7mm
Country of Origin : Italy
Product Code : 12175500
WARNING: Cancer & reproductive harm. For more information click here.
Awards
Awards
2024 Backcountry Magazine Gear Guide Select
2025 Backcountry Gear Guide Select
POW
Sizing
Sizing
SCARPA Ski Sizing Chart




All SCARPA ski boots use Mondo sizing.

SCARPA ski boots break on the half size, this means that a half size shares the same shell length as the whole size above it but the liners are lasted for each 1/2 size. For example, a 25.5 and 26.0 are the same shell size but the respective liners come pre-molded to the half size.

Some skiers may want to downsize up to 1 full Mondo size, depending upon personal preference.


Reviews
Reviews
5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
FitRated 0.0 on a scale of minus 2 to 2
VolumeRated 0.0 on a scale of minus 2 to 2
1 review
  • BY
    Brook Y.
    Verified Buyer
    Reviewing
    ALIEN
    I recommend this product
    Bought For Skimo
    Rated 5 out of 5 stars
    March 20, 2026
    Very Impressive

    Scarpa never disappoints. Comfortable out of the box and they ski just as stiff as an LT. Well done.