[pageLogInLogOut]

#Recycling / Circular Economy

Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei launch SAISEI Collection, premium stretch denim line made of recycled materials

The Lenzing Group, a leading supplier of regenerated cellulosic fibers for the textile and nonwovens industries, ROICA™ by Asahi Kasei, a pioneer in premium stretch fiber, and Kaihara Denim, the world-renowned Japanese denim manufacturer, join forces for the first time to co-create a premium stretch denim collection, “SAISEI Collection.”
  • Made of recycled materials with exceptional softness, the stretch denim collection unleashes endless denim design possibilities from everyday chic to workwear with three distinct stretch denim styles
  • The new collection will debut globally at Kingpins Amsterdam, October 23–24, 2024
  • The unprecedented collaboration combines Kaihara Denim’s premium Japanese denim craftsmanship, resource-efficient LENZING™ ECOVERO™ fibers with REFIBRA™ technology and sustainable yet durable ROICA™ EF yarn by Asahi Kasei


SAISEI Collection by Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei © 2024 kakel Tetsuya Mukume
SAISEI Collection by Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei © 2024 kakel Tetsuya Mukume


The strategic partnership is well-placed to offer the international market a higher composition of recycled materials in denim. Blending LENZING™ ECOVERO™ branded viscose fibers with REFIBRA™ technology(1) with ROICA™ EF recycled stretch yarn and entrusting them with Kaihara Denim’s renowned denim craftsmanship, the high-quality denim collection is brought to light. It will make its first appearance at Kingpins Amsterdam, October 23–24, 2024.

“Through this partnership with Kaihara Denim and ROICA™ by Asahi Kasei, we are taking bold steps to drive denim circularity empowered by joint expertise and devotion,” said Dennis Hui, Global Business Development Manager, Denim at Lenzing. “The synergy between ROICA™ EF yarn, LENZING™ ECOVERO™ fibers with REFIBRA™ technology, and Kaihara Denim’s exceptional craftsmanship has given life to premium, resource-efficient denim fabrics that have sustainability, performance, and style at heart. This partnership not only underscores the shared commitment between Lenzing and our partners to create excellent products while doing better for the environment4, but also serves as a catalyst for driving the transformation towards low impact practices4 across the denim value chain and beyond.”

Dennis Hui, Global Business Development Manager, Denim at Lenzing © 2024 Lenzing
Dennis Hui, Global Business Development Manager, Denim at Lenzing © 2024 Lenzing


Weaving the future of denim with collective innovation

The new denim collection boasts a special fabric composition, making the most of ROICA™ EF yarn and LENZING™ ECOVERO™ fibers with REFIBRA™ technology thanks to their resource-efficient attributes. ROICA™ EF, made of pre-consumer recycled content as well as featuring excellent stretchability, is integral to the flexibility, and comfort of the fabric. On the other hand, LENZING™ ECOVERO™ fibers with REFIBRA™ technology, comprises up to 20% of post-consumer textile waste, which is sourced from cellulose-rich materials or polyester-cotton blends, supporting natural softness to the denim fabric.

“Our vision for sustainability at Asahi Kasei is to achieve zero emissions and seek to recycle all of our industrial waste,” said Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei. “Our innovative ROICA™ EF yarns, which is 30% lower in CO2 emissions compared to regular yarns, exemplify this dedication. By partnering with Lenzing and Kaihara Denim on a recycling concept that gives new life to pre-used materials, we are able to leverage our collective expertise in sustainable stretch fabrics. We are thrilled that the incorporation of LENZING™ ECOVERO™ with REFIBRA™ technology and Kaihara Denim’s premium denim craftsmanship can provide an exceptional fabric that meets the growing consumer demand for environmentally consicous, comfortable denimwear.”

Redefining denim applications for high-performing, eco-conscious fashion

The collection offers three distinct denim fabrications – super stretch (Monster Stretch by Kaihara Denim), comfort stretch, and low stretch (selvedge denim) – each crafted with Kaihara Denim’s artisanal expertise using the meticulous blend of LENZING™ ECOVERO™ with REFIBRA™ technology and ROICA™ EF. This innovative denim fabric features a subtle bulkiness and reduced drape, delivering a unique hand feel. The versatility of the new denim fabric opens a world of possibilities for fashion designers and brands, empowering them to create stylish, resource-efficient garments that range from everyday chic, casual wear to workwear.

“As Lenzing’s long-standing partner, we are thrilled to be part of this transformative journey with ROICA™ by Asahi Kasei that embodies our concerted efforts towards driving positive change across the global denim landscape,” said Hirofumi Inagaki, Executive Officer, General Manager of Sales Department at Kaihara Denim. “Our long history and established expertise in premium denim manufacturing allow us to unlock the full potential of LENZING™ ECOVERO™ with REFIBRA™ technology and ROICA™ EF, resulting in this innovative, resource-efficient denim collection. Together, we are reshaping the future of sustainable denim applications, both casual and formal, paving the way for a more circular fashion value chain.”

Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei © 2024 Lenzing
Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei © 2024 Lenzing


The new denim collection will be showcased at the Lenzing booth (no. 12 in blue zone) and ROICA booth (no. 10 in yellow zone) during Kingpins Amsterdam, October 23–24, 2024.



More News from Lenzing

#Man-Made Fibers

Lenzing shareholders approve €300 million capital increase

Shareholders of Lenzing AG have approved a capital increase of approximately €300 million, providing financial support for the company's recently announced "Grow Nonwovens, Reset Textiles" strategy.

#Man-Made Fibers

Lenzing reports improved half-year results and advances strategic transformation

Despite a persistently challenging market environment in the first half of 2026, characterized by volatile energy and raw material prices, subdued global consumer demand and intensified competition from Asia, the Lenzing Group significantly improved its financial performance. Net result after tax more than doubled to EUR 35.6 million, compared with EUR 15.2 million in the first half of 2025. Free cash flow increased to EUR 45.8 million, while EBITDA amounted to EUR 239.2 million. Revenue totaled EUR 1.27 billion, compared with EUR 1.34 billion in the previous year.

#Nonwovens

Lenzing Group highlights scalable, bio-based nonwovens solutions at leading global industry fairs

From CIDPEX in China to Techtextil in Frankfurt and INDEX in Geneva, the Lenzing Group showcases ready-for-market, bio-based nonwoven solutions and receives industry recognition for LENZING™ Nonwoven Technology.

#Yarn & Fiber

Lenzing AG appoints Georg Kasperkovitz as Chief Executive Officer

The Supervisory Board of Lenzing AG has appointed Georg Kasperkovitz, Member of the Management Board and Chief Operations Officer, as Chief Executive Officer (CEO) of Lenzing AG with effect from June 1, 2026.

More News on Recycling / Circular Economy

#Recycling / Circular Economy

Recover™ names Enes Adak and Fehmi Yüksel as Co-CEOs to accelerate its next growth phase

Recover™, a leading materials science company and global producer of consistent high-quality, recycled cotton fibers and circular material solutions at scale, today announced the appointment of Enes Adak and Fehmi Yüksel as Co-Chief Executive Officers. This leadership transition marks an important step in Recover’s evolution as the company enters its next stage of development.

#Recycling / Circular Economy

Arc'teryx introduces System 0™, a new framework for the future of product design and circularity

Arc'teryx Equipment, the global design company specializing in technical high-performance apparel and equipment, today introduced System 0™, a new framework that reimagines how products can be designed, manufactured, used, repaired, and ultimately regenerated. System 0 represents the next evolution for sustainability in the outdoor industry, as it embeds circular thinking across an entire product lifecycle while maintaining the uncompromising performance standards that define the Arc’teryx brand.

#Recycling / Circular Economy

2. RETRAKT EU Conference - „Join the Circle“: Turning challenges of the textile sector into chances

On 19 November 2026, the second RETRAKT EU Conference – “Join the Circle” will take place in Brussels. The event, which focuses on the transformation of the textile sector towards a circular economy, will be held under the motto: “Turning Challenges in the Textile Sector into Chances.”

#Recycled Fibers

Indorama Ventures supports KH Editions in building on its RECO experience Taking Thai circular fashion to New York Fashion Week

Indorama Ventures Public Company Limited, a global sustainable chemical company, is supporting KH Editions, a Thai fashion brand that has grown through the RECO program, by providing fabrics woven with deja™ recycled polyester yarn. The fabrics have been used to create two fashion looks and accessories from the brand’s ten-look Spring/Summer 2027 collection, which will be presented in New York City, United States, on 15 September 2026 during New York Fashion Week.

Latest News

#Nonwovens

25 years in the room: EDANA’s OUTLOOK™ returns to Cascais to shape a changing industry

The market does not wait, and it does not grant easy answers. Across the absorbent hygiene, personal care, and wipes sectors, business is undergoing a period of intense, necessary adjustment. New European rules on packaging, single-use items, product safety, and end-of-life are forcing companies to drop old assumptions about materials and performance. At the same time, producers must keep their goods safe, reliable, and affordable for the babies and aging adults, who rely on them every day.

#Research & Development

ADD-ITC 2026 highlights strong industry participation

The Aachen-Dresden-Denkendorf International Textile Conference (ADD-ITC) 2026 will place a strong focus on the exchange between textile research and industry when it takes place on November 26–27, 2026, at the International Congress Center Dresden. According to the preliminary conference program, more than two-thirds of all presentations will be contributed by companies or jointly presented by industry and research institutions.

#Textiles & Apparel / Garment

Texworld Apparel Sourcing Paris reflects shift towards more diversified sourcing

The latest edition of Texworld Apparel Sourcing Paris confirms the global reshaping of sourcing strategies. The offer is evolving to satisfy more selective buyers, looking for responsiveness, innovation and diversification in their sourcing options.

#ITMA Asia + CITME 2026

ITMA Asia 2026: How Barmag is reshaping the future of man-made fiber production

The textile industry is entering a groundbreaking era. Manufacturers face rising energy prices, growing sustainability demands, increasing labor shortages, and an unprecedented need for flexibility. For a globally active textile industry, where competitiveness is closely linked to production efficiency and cost leadership, this means that technology is no longer merely a means of improving operational processes – it is increasingly becoming a strategic differentiator.

TOP