ALIEN 4.0

Sale price $1,875.00 USD Regular price $2,500.00 USD
Save $625.00
2 total reviews

The perennial, top-of-the-podium boot in major skimo races across the globe, the Alien 4.0 represents the pinnacle of lightweight ski boot engineering. The shell and cuff are crafted from hand-laid...

Color:
Black
Size Size chart
In stock
Features
Features
SPEED LOCK LITE 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 4.0 system is mounted to a protective Pebax tongue panel and compresses down on the instep as it’s tightened.
SPEED LOCK LITE SYSTEM

SPEED LOCK LITE SYSTEM

The Speed Lock Lite System is a simple and effective system that uses a Dyneema® cord integrating the ski/walk mechanism with the cuff, allowing for quick and efficient single-action transitions. Flipping the lever up both opens the cuff and engages walk mode, while locking it down closes the cuff and sets the ski mode. Set it and forget it - once the cord is adjusted to the proper length you simply switch back and forth between ski and walk modes with one easy motion.
SPEED LOCK LITE SYSTEM
Technical Specs
Technical Specs
Size Options : 39 - 44 (European sizes)
Weight Reference : 610g; 1lbs 5.5oz (1/2 pair size 27)
Waterproof/Breathable : PFAS Compliant
Outsole : Vibram® UFO 4.0
Last : 99mm
Country of Origin : Italy
Product Code : 12177500
WARNING: Cancer & reproductive harm. For more information click here.
Awards
Awards
2023 Skialper Boot of The Year
Sizing
Sizing
SCARPA Alien Sizing Chart




Our Alien 3.0 ski boot uses European sizing:

  • 1 Euro whole size = 6.6 mm = 0.26 inches
  • 1 US whole size = 8.4 mm = 0.33 inches
  • Euro sizes provide a better, more precise fit for your intended use



Reviews
Reviews
5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2 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
2 reviews
  • M
    Max
    Reviewing
    ALIEN 4.0
    I recommend this product
    Rated 5 out of 5 stars
    July 14, 2024
    Only option when maximum performance is needed.

    I have been impressed by the progression of skimo boots since owning my first pair of F1’s with a bellows nearly 20 years ago. The new Alien 4.0 is what I rely on for maximum performance on my 65mm race skis and 78mm light and fast touring skis. Once you go carbon you won’t go back.

  • CS
    Cole S.
    Reviewing
    ALIEN 4.0
    I recommend this product
    Rated 5 out of 5 stars
    January 11, 2024
    I love this shoe

    I recently bought this shoe since my feet were cold while playing fortnite. So i decided to use my money on something useful like these! i love dick