Sports t-shirt recommended for high-performance activities such as triathlon, trail, cycling, running, and CrossFit.Suitable for cold and very cold conditionsWarm and soft thanks to the brushed fabric on the insideTwo-layer structure that absorbs moisture to keep you dry and comfortableWoven according to the anatomical shape of the body and sports movement for maximum freedom of movementSuitable for medium to high intensity activitiesFine 3D fabric that adapts completely to your skin without rolling or shifting, avoiding chafing. Thermoregulator: Keeps body temperature stable by evaporating sweat quickly. It is made with high-quality material, making it a resistant and highly durable garment. Ultraviolet radiation protection. The long-sleeved T-shirt is a technical and functional garment that offers excellent moisture management and light compression to support muscles and reduce muscle fatigue. Sweating is our body's natural cooling system. Technologies: -3D technology in the chest and back provides the athlete with a feeling of comfort by cooling them during exercise and warming them during recovery. Thermoregulation occurs when the body's temperature increases and it begins to sweat. If there is no sweat, the system serves as a thermal insulator. The technology eliminates the sensation of underarm sweat, allowing breathability from the first moment thanks to the use of heat convection properties for its evacuation. The fabric is folded according to the accordion principle, ensuring that the winter cold does not chill your elbows. Even when folded very tightly, the insulation effect is maintained through the warm air stored inside. The elasticity of the fiber allows freedom of movement without friction. Even in sports with continuous arm movement, such as trail running, there are no symptoms of muscle fatigue with movement. Located in the chest area and lower back. They are part of the temperature system. Physiological studies have shown that the chest area is an optimal zone for effective and rapid cooling. Exchanging fresh air over a channel system cools the chest area without spreading a cold sensation to the rest of the body. The constant movement of air along the duct also effectively removes moisture from sweat areas. Improved performance due to gradual compression that reduces muscle oscillations. OEKO-TEX certified: Free of harmful substances and antibacterial. Made in Spain.