SCARPA unveils ALIEN SKY and ALIEN ULTRA Limited Edition: the next generation of Alpine Running shoes for going beyond every limit.
Two models developed in collaboration with elite athletes to deliver precision, propulsion and control on the most technical terrain, from vertical races to alpine ultra-distance events.
Asolo, 20 August 2026 – SCARPA unveils ALIEN SKY Limited Edition and ALIEN ULTRA Limited Edition, two limited edition designs that provide a new technical platform dedicated to high-performance Alpine Running, previewing the SS27 collection.
Available from today in limited quantities with an exclusive launch colourway, both models are the result of a development process carried out alongside SCARPA team’s leading athletes.
While sharing the same design philosophy and core technologies, the two models are tailored to different needs. ALIEN SKY is built for vertical racing and the most technical alpine terrain, where lightness and precision make all the difference. ALIEN ULTRA is designed for long alpine distances, with a construction developed to provide support, consistency and efficiency even after many hours on the move.
ALIEN SKY and ALIEN ULTRA were created with one clear objective: to give athletes a tool capable of making running on the most technical terrain feel more natural, more fluid and more efficient than ever before.
Precision on foot placements, propulsion, ground connection and stability combine in a unique platform designed to support runners in the most demanding mountain environments. Every element of the construction works in harmony to promote a smooth, responsive stride while maintaining control on rock, mud and steep gradients.
ALIEN SKY and ALIEN ULTRA are the result of an extensive research and development programme carried out together with SCARPA’s elite athletes.
ALIEN SKY was developed in close collaboration with Luca Del Pero and Marcos Villamuera, who were involved from the earliest stages of the design process and began testing prototypes in spring 2025.
The development of ALIEN ULTRA also benefited, among others, from the direct contribution of Peter Frano, who worked alongside the SCARPA team to fine-tune the shoe’s performance over long alpine distances.
The continuous exchange between designers and athletes made it possible to refine every aspect of the construction, turning real-world experience into tangible technical solutions.
Designed for vertical races and the most technical alpine terrain, ALIEN SKY prioritises lightness, precision and fast response.
Weighing just 235 g (½ pair, size 42) with a 26–20 mm stack height, it delivers direct ground contact and progressive impact absorption, enabling rapid pace changes and exceptionally precise movement, even on the most demanding sections.
Completing the construction is a forefoot Adaptive Propulsion Plate made from nylon reinforced with 20% glass fiber, designed to deliver more effective propulsion on steep climbs while protecting the foot from sharp rocks. Its distinctive central cut-out design also enables controlled torsional flex, enhancing adaptability, stability and ground contact even on the most uneven terrain.
ALIEN ULTRA shares the same technical DNA, reinterpreted in a shoe built for long-distance racing and alpine endurance events.
Its more protective construction, combined with a weight of 295 g (½ pair, size 42) and a 38–32 mm stack height, provides greater impact absorption and continuous forward progression while maintaining outstanding stability and control over extended efforts.
The full-length Propulsion Plate, made from Pebax® reinforced with 30% carbon fiber, works in synergy with the A-TPU midsole to optimise stability, guide the gait cycle and enhance energy return. Its branched forefoot design and swallowtail-shaped heel structure improve terrain adaptability, maintaining control and traction even across the most technical alpine terrain.
Both models share a common technical platform that combines solutions developed by SCARPA with high-performance components specifically engineered for Alpine Running.
At the core of the construction is a midsole made from Super Critical Foam 100% Aliphatic-TPU (A-TPU) – (single layer for ALIEN SKY, dual-layer for ALIEN ULTRA), expanded through a supercritical nitrogen infusion process. This formulation helps convert impact energy into propulsion, delivering exceptional lightweight performance, high energy return and consistent performance even during the most demanding efforts.
For fit and protection, the Second-Skin Precision Upper wraps the foot with precision, ensuring a direct connection to the terrain, while the integrated gaiter prevents rocks and debris from entering the shoe during the run.
Completing the platform, the Flow Arch geometry in the forefoot promotes a smooth transition and faster toe-off, while the Vibram® Megagrip outsole provides reliable traction on rock, mud and highly technical alpine terrain.
With ALIEN SKY and ALIEN ULTRA, SCARPA introduces a new technical platform dedicated to Alpine Running, developed for elite athletes and the most demanding trail runners.
Two complementary models united by the same pursuit of precision, efficiency and control, engineered to meet different performance needs: from the explosive responsiveness required in vertical racing to the sustained support and consistency needed for alpine ultra-distance events.
- Super Critical Foam 100% Aliphatic-TPU (A-TPU) midsole
- Integrated debris gaiter
- Second-Skin Precision Upper
- Flow Arch geometry
- Vibram® Megagrip outsole
- Drop: 6 mm
- Adaptive Propulsion Plate in nylon reinforced with 20% glass fiber
- Weight: 235 g (½ pair, size 42)
- Stack height: 26–20 mm
- Sizes: 38–45½ + 46
- Propulsion Plate in Pebax® reinforced with 30% carbon fiber
- Weight: 295 g (½ pair, size 42)
- Stack height: 38–32 mm
- Sizes: 38–45½ + 46
ALIEN SKY Limited Edition and ALIEN ULTRA Limited Edition are available from 20 August 2026 through the Trail Running page on the official SCARPA e-shop and exclusively at Ravanel and Snell, authorised SCARPA retailers in Chamonix, France.
Link to images: download
Link to images: download
SCARPA was founded on the belief that No Place Too Far exists to be explored. A vision that reflects a deep respect for the mountains, and one that supports those who aim to turn every limit into a new benchmark. Craftsmanship and innovation come together to create footwear for every path, from everyday challenges to the most demanding peaks.
Grounded in a family-owned Italian heritage and a direct production chain, SCARPA has always invested in human relationships built on trust and mutual understanding. Every product is born from a real world need, interpreted with expertise to create high-performance, durable footwear. Authenticity, mountain culture and conscious innovation guide every decision—yesterday as much as tomorrow.
Founded in 1938 in Asolo, in the heart of Italy’s Veneto footwear district, SCARPA is an international company specializing in footwear for mountaineering, climbing, trail running, trekking, hiking, outdoor lifestyle, ski mountaineering, and telemark. With offices in Italy, Germany, the United States, and China, and production facilities in Italy, Romania, and Serbia, SCARPA remains a reference point for those who experience nature as a source of freedom and adventure.