The evolution of an icon. The UYN underwear, tested and recommended by the best national teams in the world, is now even more powerful. In the new version of the UYN Natyons jersey, we have reduced the weight by 34% compared to the previous model, thanks to a new design and the use of the bio-based yarn Natex. At the same time, we have increased elasticity by 4% to allow for even greater freedom of movement. The breathable surface of the Gradual Coolvent technology has expanded by 58% in the chest, back, and forearm areas. This keeps the body dry and the temperature stable even during the most strenuous races. Laboratory and on-slope tests have led us to introduce new features, such as Meta-Ribs on the shoulders that stabilize and support the shoulder muscles, and Pressure Branches at the elbows that protect and relieve the joints. The targeted compression, which is even more intense at the extremities, promotes blood circulation and reduces fatigue.