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ALIEN 5.0: the full carbon race boot for maximum performance in competitive ski mountaineering

di - 28/02/2026

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Color restyling and enhanced visual identity

The new ALIEN 5.0 features a color restyling designed to strengthen the identity of one of the most iconic models in the Alpine Touring Race segment, while maintaining its lightness, efficiency and reliability in racing.

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An evolution developed for high-level competitions

In a pivotal year for international ski mountaineering, SCARPA introduces the aesthetic evolution of the ALIEN 5.0, already tested by the world’s top athletes. The model is part of a consolidated technical project, built to deliver performance at the highest levels of skimo racing.

Enhanced design without technical compromises

Renewed visual identity

The new colorway and maximalist logo give the boot an even more distinctive character, while maintaining the construction solutions that have made the Alien line an absolute reference for ski mountaineering competitions.

Scarpa Alien 5.0

Ultralight full carbon structure

Weighing just 610 grams for half a pair, it guarantees efficiency on climbs and responsiveness on descents, thanks to the immediate transmission of power.

Mobility, rigidity and comfort

The carbon fiber construction with 3D Core honeycomb structure reinforcement ensures:

  • high torsional stiffness
  • thermal insulation
  • expanded mobility
  • easy fit
  • progressive pressure distribution
Scarpa Alien 5.0

Locking systems and advanced features

BOA® Fit System and Speed ​​Lock System Lite

The BOA® Fit System allows for precise and consistent micro-adjustment, even in extreme conditions.
The Speed ​​Lock System Lite mechanism allows for quick transitions from walk to ski mode with a single movement, optimizing transition times.

Total protection and thermoformable comfort

The Lite Shield Tech gaiter in spandex and nylon provides snow protection and adapts to different foot shapes.
The lightweight, low-cut, heat-moldable Race 4.0 SL Intuition liner improves comfort, foot entry, and a precise fit.

Scarpa Alien 5.0

SCARPA’s vision for the future of skimo racing

With ALIEN 5.0, the company reaffirms its philosophy in the world of competitive ski mountaineering: a boot designed for those who experience competition as the ultimate expression of performance, where every detail is designed to optimize efficiency, precision, and speed.

Technical specifications

  • Weighs only 610g (½ pair, size 42)
  • Carbon fiber hull and cuff
  • Lite Shield Tech Gaiter
  • BOA® Fit System Closure System
  • Speed ​​Lock System Lite ski/walk mechanism
  • Intuition Race 4.0 SL Thermoformable Liner
  • Binding compatibility: TLT (Optimized Touring Pivot -5 mm)
  • Sizes from 39 to 44 (no half sizes)
  • Retail price: €1,999.00

Diplomato in Arti Grafiche, Laureato in Architettura con specializzazione in Design al Politecnico di Milano, un Master in Digital Marketing. Giornalista dal 2005 è direttore di 4Actionmedia dal 2015. Grande appassionato di sport e attività Outdoor, ha all'attivo alcune discese di sci ripido (50°) sul Monte Bianco e Monte Rosa, mezze maratone, alcune vie di alpinismo sulle alpi e surf in Indonesia.