In a class of its own, ULTRA ™ represents a new paradigm in terms of durability and weight. The ULTRA ™ weave is made with an optimal blend of UHMWPE and high tenacity polyester. The tightly woven texture is laminated with an eco-friendly adhesive to our revolutionary Challenge RUV ™ film. The result is an incredibly strong, lightweight and waterproof fabric up to 200 psi. ULTRA ™ works in the harshest environments, both in sub-zero and tropical climates.
THE WORLD'S STRONGEST FIBER
In a class of its own, ULTRA ™ represents a new paradigm in terms of durability and weight. The ULTRA ™ weave is made with an optimal blend of UHMWPE and high tenacity polyester. The tight weave is laminated with an eco-friendly adhesive and then welded with the innovative Challenge RUV ™ film. The result is an incredibly strong, lightweight fabric that is waterproof to 200 psi. ULTRA ™ works in the harshest environments, both in sub-zero and tropical climates.
to reach the summit
400d Ultra PE is approximately 20% lighter and four times the abrasion resistance of other 400d U-PE fabrics.
Challenge ULTRA ™ is the ultimate in ultralight fabrics for extreme conditions
We couldn't find a technical backpack sturdy enough, light enough or fast enough to take us where we wanted ... So we created it.
With the ABOVE 2,4 and 8000m line we have designed a minimalist and essential backpack, light but sturdy with a unique and innovative design. Thanks to the high performance of the innovative Ultra400 fabric, of the challengesailcloth, it was possible to create the ABOVE 2000, 4000 and 8000m line
The Challenge ULTRA™ line of fabrics is composed of the highest performing UHMWPE composite fabrics in the world
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