
UltraWeave™
Ultralight Pack Fabric Made with ECOPAK™ Technology
UHMWPE
Ultra High Molecular Weight Polyethylene
UHMWPE fibers (non-branded Dyneema® or Spectra®) are the lightest and strongest fibers commercially available, with a tensile strength 15x stronger than steel. UHMWPE is created by a gel-spun extrusion process which draws out extremely long chains of polyethylene, aligned along a molecular backbone. This alignment effectively transfers load through the fiber for high modulus and strength.
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Incredibly Lightweight
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Abrasion Resistant
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Hydrophic
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UV & Chemical Resistant
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Cut & Tear Resistant
Ultra TNT
Ultralight laminate designed for Tents & Tarps
Incredibly Lightweight
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Abrasion Resistant
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Hydrophobic
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UV & Chemical Resistant
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Cut & Tear Resistant
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Incredibly Lightweight 〰️ Abrasion Resistant 〰️ Hydrophobic 〰️ UV & Chemical Resistant 〰️ Cut & Tear Resistant 〰️
UltraGrid
The world’s first recycled nylon grid fabric with Ultra™ ripstop.
Meet the team
UltraGrid
Eleanor Parks
Monet Goode
Emmet Marsh
Eleanor Parks
Emmet Marsh
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UltraGrid
FOUNDER
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.
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Emmett Marsh
DESIGN DIRECTOR
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.
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Eleanor Parks
SUSTAINABILITY DIRECTOR
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.






The Ultimate Textile
The Challenge ULTRA™ line of fabrics is composed of the highest performing UHMWPE composite fabrics in the world.
In a class of its own, ULTRA™ represents a new paradigm in durability and weight. ULTRA™ weave is constructed with an optimal blend of UHMWPE & high-tenacity polyester. The tight weave is laminated with an eco-friendly adhesive to our revolutionary Challenge RUV™ film. The result is a textile that is incredibly strong, lightweight, and waterproof to 200 psi. ULTRA™ performs in the harshest environments, in both sub-zero and tropical climates.
Challenge ULTRA™ is the ultimate in ultralight pack fabric, with the strength to go the distance in the most demanding backpacks and duffels. Our woven ULTRA™ line, ranging from 100d to 800d, is elevating adventure sports to the next level.
UltraWeave Product Lines
UltraWeave Product Lines
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UltraX
UltraWeave
Ultra CrossPly
0.75mil PET film
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UltraTX
UltraWeave
Ultra CrossPly
0.75mil PET film
Taffeta
FAQs
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.
This is a frequently asked question?
It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world. Whatever it is, the way you tell your story online can make all the difference.