PACK ASSAUT2 ULTRA XP
£2,200.00 GBP
Developed with Feeding The Rat Expeditions, the ASSAUT2 ULTRA XP is an alpine-style expedition tent for two climbers, built for long technical missions at high altitude. Designed around FTRE's field needs on committed, self-supported expeditions in remote areas, it combines extreme lightness (1,225 g), geodesic strength, an integrated vestibule and optimized living space. Packing down to just 6.2 L, it takes up little room in your pack while giving you real shelter and a place to recover in extreme conditions.
The tent comes with 3 stuff sacks and an exclusive Samaya x FTRE neck gaiter.
Collaboration limited to 30 pieces
Free delivery > €250
Returns within 14 days
Repair service
Minimum weight
1 225 g (2 lbs 11.2 oz)
4 seasons
Capacity
2 people
Wind resistance
120 km/h
Mountaineering at altitudes over 8,000m
Hoop material
Carbon
Minimum compressed volume
6.2 L (378 cu in)
Construction
Single-walled
PRODUCT DESCRIPTION
Designed for winter mountaineering and high-altitude base camps, the ASSAUT2 ULTRA XP features a built-in extended vestibule that allows you to cook, store gear, and manage camp life under shelter, even in extreme conditions. Its geodesic structure and external continuous pole sleeves ensure quick and efficient setup, even in high winds or harsh environments.
Based on the architecture of the classic ASSAUT2 ULTRA, it retains the same interior volume and the same ultralight structure, but with a built-in vestibule from the start. While less modular, it is perfectly optimized for long-duration expeditions, technical mountaineering, and the most hostile environments.
The ASSAUT2 ULTRA XP currently represents the pinnacle of ultralight expedition tents: a shelter designed without compromise for those who operate where the slightest equipment failure is not an option.
FEEDING THE RAT EXPEDITIONS
Feeding The Rat Expeditions is a collective of alpinists led by Ed Hannam, renowned for their fully self-supported expeditions across the Himalayas, the Karakoram, and other remote mountain ranges where commitment and autonomy are absolute. Their philosophy is based on a minimalist and deeply committed vision of alpinism: moving light, far from commercial expeditions, with only equipment genuinely capable of performing in the world's most hostile environments.
FTRE claims the legacy of the great figures who shaped a certain idea of alpine exploration. The collective draws inspiration from alpinists such as Eric Shipton, Charlie Fowler, or Voytek Kurtyka, known for their free, creative, and unconventional approach to the mountains. Their vision is based on a “by fair means” practice of alpinism: pushing limits with honesty, interacting intimately with the territories traversed, and preserving a form of “soul climbing,” where human experience and commitment take precedence over pure performance.
“The ASSAUT2 ULTRA XP [...] is quite simply the best expedition tent ever designed.”
Designed for committed alpinism and long-duration expeditions, the ASSAUT2 ULTRA XP embodies this very philosophy: pushing the limits of ultralight expedition shelters while maintaining the level of protection and reliability required by the world’s most extreme environments.
At Feeding The Rat Expeditions, lightness is never an aesthetic end in itself, but a tool that allows us to go further, faster, and more freely in remote regions. The collective's members hold high-level international certifications such as AMGA or IFMGA, but believe that technical qualifications represent only a small part of the skills required to lead high-altitude expeditions. Logistics, strategy, managing the unexpected, adaptability, and the ability to live for several weeks in distant cultures and environments are at the heart of their approach. Their goal is not just to survive off-the-beaten-track expeditions, but to thrive in them sustainably.
For several years, Feeding The Rat Expeditions has actively contributed to field testing and developing Samaya products in extreme conditions involving high altitude, violent storms, polar cold, and multi-week self-sufficient traverses. Their high standards for reliability, protection, and weight reduction make them a particularly legitimate testing partner for the ASSAUT2 ULTRA XP.
"We discovered Samaya five years ago and have since spent hundreds of nights in their tents, using different models and prototypes. These tents have changed the way we operate."
This testimonial perfectly reflects the relationship between FTRE and Samaya: a collaboration born directly in the field, in environments where every detail of a shelter can influence the success of an expedition. For FTRE, reducing weight never means compromising on safety or functionality.
TECHNICAL SPECIFICATIONS
TESTED IN THE FIELD
TECHNOLOGIES
Bio-based Dyneema®
Bio-based Dyneema® is a more sustainable version of classic Dyneema®, made from renewable raw materials, primarily derived from forestry industry residues, rather than fossil resources.
This material relies on a production process where ethylene, the key ingredient of Dyneema®, is obtained from plant-based biomass instead of petroleum. This approach significantly reduces the carbon footprint while maintaining the exceptional performance of conventional Dyneema®: extreme tensile strength, lightness, water resistance, and durability.
Certified by ISCC (International Sustainability & Carbon Certification), bio-based Dyneema® is part of a commitment to a circular economy and the reduction of CO₂ emissions, offering a more responsible alternative with no compromise on performance.
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TENT WALLS
Dyneema_X™
Samaya adapts its composites based on their intended use. Dyneema_X™ combines Dyneema® filaments with an ePTFE membrane, offering waterproofing (20,000 mm), breathability (40,000 g/m²/24h), and lightness. The microporous structure of the ePTFE wicks away vapor while blocking water, while the Dyneema® provides high mechanical resistance and low water absorption.
POLES
Easton 3.9 (Carbon)
Samaya has developed poles with Easton, a manufacturer recognized for its expertise in composite materials, particularly in the design of carbon poles for technical tents. Samaya specifically uses Easton’s ION range on certain models in its ULTRA line. These carbon poles are optimized to offer the best possible stiffness-to-weight ratio.
TENT FLOOR AND VESTIBULE WALLS
Dyneema Composite Fabric (DCF)
Samaya has chosen Dyneema® Composite Fabric for its tent floors due to its exceptional properties. This laminated textile, composed of UHMWPE fiber filaments crossed at 90° and two layers of Mylar®, offers very high mechanical resistance and limits tearing in the event of a puncture. In addition to its performance, this material is easily repairable, thereby extending the lifespan of Samaya products.