Kontoor Brands Inc., the parent of Lee and Wrangler brands, recently launched their latest innovation based on the thermal regulation properties of Kyorene® graphene fiber.
Graphene is carbon-based nanomaterial, and its unique chemistry and versatility brings innovations to vastly different fields including electronics and batteries, plastics, lubricants, concrete and now clothing. In most cases, the graphene is used as an additive in a very small percentage, to bring about improvements in strength, stiffness, durability, or electrical conductivity.
The Wrangler ATG men’s reversible vest and jacket utilize a highly efficient, lightweight insulation material made of a blend of Sorona®and Kyorene® graphene fibers that offers improved flexibility, reliable performance, and the lasting warmth without the bulk of traditional polyester fiberfill materials.
The Kyorene® graphene fiber produced by Graphene One LLC, is a hollow polyester staple fiber that contains their patented graphene oxide nanomaterial. The graphene can absorb far infrared radiation given off by the body and that heat energy is captured in the Sorona®/Kyorene® fiber blend. In developmental testing the Kyorene® graphene provided a 20% improvement in thermal insulation, allowing for a lighter, thinner layer to be used in the vest and jacket design.
In addition to thermal insulation, Kyorene® graphene fibers have antibacterial and anti-odor performance that has been key in their commercial use in sportwear, socks, underwear, sleep wear and more.
This development builds upon the success of Kontoor’s 2023 product launches, which showcased the integration of advanced graphene technology in apparel. The Kontoor Denim jeans introduced that year featured Kyorene® graphene fibers blended with cotton, delivering a unique balance of increased warmth, breathability, and lightweight comfort. The inclusion of graphene enhanced not only thermal regulation—helping to retain body heat in cooler conditions—but also contributed to improved durability, odor control, and moisture management for all-day wearability.
Similarly, Kontoor extended the use of Kyorene® fibers to its Lee Urban Rider fleece collection, launched in 2023, further highlighting the versatility of this technology. The graphene-infused fleece offered superior thermal insulation, antimicrobial protection, and UV resistance, making it ideal for both urban and active lifestyles.
