Thermal underwear UYN Natyon 3.0 USA UW Shirt LG SL.Turtle Neck - 2025/26

Thermoactive underwear Natyon 3.0 is tested and recommended by the leading representatives of the world of underwear. In the new version of UYN NATYON T-shirts, we have reduced the weight by 34% in the norm thanks to the new design and the care of Natex bio-fibers. we managed to increase it by 4% to further increase functionality. Breathable technology of Gradual Coolvent technology reduced by 58% to the support cage, back and underarms. Thanks to this, the body stays that way and has a stable temperature even during the most stressful races. Testing in the lab and on the ski slopes can lead us to new features such as Meta-Ribs on the shoulders to stabilize and support the abdominal muscles, and Pressure Branches on the elbows to protect and reduce pressure on the joints. Targeted compression, more intense in the limbs, support blood circulation for exercise.

Heatmemory: Combining power with comfort is not an easy task - still possible to achieve. Thanks to the insulating HEATMEMORY chamber your body will be protected from the cold. 

Coolvent: The channelled inner surface promotes a constant flow of air. It was quickly absorbs sweat, cools the body during activity and keeps the skin dry.

Compressyon: Compression helps to stabilize the muscles and stimulate blood circulaton. Heavily stressed muscles generate heat. This must be actively led away from the body. Thanks to the air-filled compression chambers, fresh air can circulate directly over the muscles, so that effective cooling occurs. And exactly where it is needed. 

Drylight: Transports perspiration to the outside through a lighter, extremely absorptive knitting technology. 

Feelines: Dynamic contour lines seamlessly interconnect the individual functional zones and guarantee even more wearing comfort and greater freedom of movement.