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Italy’s UYN Sports Introduces 100% Bio-Based Self Layer Outdoor Line for Spring 2024 Featuring Single Tube of Fabric with Only One Seam

June 13, 2023

Media Contact

Marni Illman CGPR LLC :

MARBLEHEAD, Mass., (June 13, 2023) – Italy’s UYN® (Unleash Your Nature), a global leader in sustainable technical apparel, footwear and accessories, today introduces the Self Layer collection for men and women, 100% bio-based with a patented design using a single tube of fabric with only one seam. Combining the functionality of a base layer with the look of a shirt, UYN is utilizing Fullmotion construction reducing CO2 emissions by 15%. Manufactured in Pennsylvania, Self Layer includes three models: AeroCross, HydroCross, and TerraCross ranging in prices from $69.00 to $99.00. It will be available spring 2024 at and at select specialty retailers.

The Self Layer is designed to be worn directly on the skin, providing the coverage and functionality of traditional shirts. The technology reflects years of intensive research from AREAS(Academy for Research and Engineering in Apparel and Sports), Trerè Innovation’s state of the art R&D facility. The Self Layer’s point of difference is UYN’s Fullmotion construction – a proprietary technology creating a garment from a single tube of fabric, with one seam and no cuts. This design technique reduces textile waste to a mere four grams and enhances production efficiency, reducing time by 15% and electricity consumption by 15%, which corresponds to a 15% decrease in CO2 emissions.

“Self Layer redefines what’s possible in outdoor apparel,” said UYN Head of Communications, Mattia Bazzoni. “Each piece embodies a dedication to performance, comfort and eco-consciousness. This collection enables consumers to pursue an active lifestyle with performance apparel that respects our planet.”

Self Layer uses UYN’s own nature-derived fibers including Coolth_SL from cotton linters, the thin filaments that envelop seeds, for built-in cooling capabilities and Ariacel, made from the cellulose of wood pulp filaments, for natural quick-drying. Both of these materials are not only smooth and comfortable on the skin, but also, biodegradable within months, depending on conditions.

The Self Layer collection is available in three fits tailored to different activities and preferences. The “support fit” provides slight compression to stabilize and support muscles, while the “regular fit” lays against the body without being tight. For those preferring a relaxed fit, the “comfort fit” has extra room, especially in the chest and torso.

AeroCross Self Layer for an Active Lifestyle

AeroCross ($79.00 – $89.00) emphasizes breathability and lightness, perfect for an active lifestyle and hiking. Its Flowtunnels technology, a 3D concept for ventilation, creates a network of small channels on the surface of the garment for breathability and air flow. This model comes in regular and comfort fits, with a sleeveless option available for women.

HydroCross Self Layer for High Intensity Workouts 

HydroCross ($99.00) showcases UYN’s Wickwave Knit, a knitting method trapping sweat, pulling it away from the skin for a comfortable feel. Utilizing Coolth_SL and Ariacel fibers, HydroCross ensures efficient moisture-wicking and quick-drying for any workout or outdoor activity. This model is available in both regular and comfort fit.

TerraCross Self Layer for Trekking Mountains

TerraCross ($89.00 – $99.00) is the most technical offering in the collection, featuring the new Shouldercell Knit around the shoulders, designed for comfort while wearing backpacks. The design relieves pressure and has additional abrasion resistance, perfect for carrying extra loads. The Airback technology on the back has a three-dimensional air permeable structure for increased airflow across the skin. This model incorporates Natex®, Coolth_SL, and Flexicorn. TerraCross is available in support and regular fit.

UYN is scheduled to open its first store in Boston fall 2023.


About UYN, a Trerè Innovation Company

Trerè Innovation was founded in 1950 in Asola, Italy producing only stockings by Luigi Redini, father of today’s CEO, Marco Redini. Today, it is respected for its next generation sustainable technologies in design and manufacturing. The company’s Academy for Research and Engineering in Apparel and Sports (AREAS), its 38,000 sq. ft. state-of-the-art testing facility, enables Trerè Innovation to engineer best-in-class fabrics, subjecting them to the toughest tests in a climate wind tunnel, a rain room and a cold chamber.

In 2018, Trerè Innovation introduced UYN (pronounced “win”), “Unleash Your Nature” apparel, footwear and technical socks for running, winter sports, outdoor and cycling. Today, national ski teams use the brand’s base layers including Austria, China, Czech Republic, France, Great Britain, Italy, Slovakia, Slovenia and Spain.

In addition to UYN, Trerè Innovation manufactures private label products for iconic global brands including Christian Dior, Harley-Davidson, PUMA and Rossignol, among others, and owns TITICI®, a premier bike brand that has carbon fiber models for road, gravel, mountain and electric biking. Today, UYN has 10 stores in Italy, one store in Germany, and has plans to open a store in Boston, Massachusetts, two stores in the U.K. as well as 20 more locations throughout Europe. Trerè Innovation and UYN have won over 570 international awards and competitions for innovation, quality and functionality since Trerè Innovation’s founding in 1950. Trerè Innovation is also a licensed manufacturer and distributor of Franklin & Marshall, Jeep, and Replay brands.