
We’re thrilled to share that SEFF is officially out of stealth debuting in partnership with Fashion for Good’s Beyond50 Denim initiative to make high-performance hemp mainstream.
This milestone marks the beginning of our mission: Game-Changing Change-Making in the global textile industry.
Beyond50 Denim unites leading global brands including BESTSELLER, C&A, Reformation, and Target with pioneering supply chain partners PDS LTD, Bossa (Turkey) and Nice Denim (Bangladesh) to overcome the barriers to hemp integration in denim.
SEFF is the driving technological enabler behind this effort. Our patented Nano-Pulse™ Technology unlocks hemp’s natural softness, comfort, and performance producing a “cottonized” fiber that spins efficiently on existing equipment. This innovation enables 50%+ hemp denim blends with great haptics and advanced performance metrics, reshaping what’s possible for sustainable, natural performance denim.
After more than a decade developing, proving, and scaling our technology, we’re honored to see it powering a new wave of innovation and collaboration. SEFF Hemp offers brands an alternative or additive to traditional fibers meeting the rising demand for natural materials with genuine performance and sustainability.

We’re deeply grateful to our partners, investors, and collaborators who believed in this mission long before it was visible. Your support made this milestone possible and it’s only the beginning.
SEFF is defining a new category of Natural Performance Hemp™, inviting a deep blue ocean of collaboration among brand, mill, and technology partners worldwide.
Connect with Josh Nusenbaum, Neil Bell, Junaid Safdar, and David Rosenstein, or drop us a message to explore what we can create together through SEFF Co-Labs.
For more, see Fashion for Good’s full press release here