Unisex thermoregulating T-shirt for low intensity sports at very low temperatures, as well as for sports at low temperatures with high temperature fluctuations. Feel the second skin effect of this first layer garment. Very versatile long-sleeved garment with zones that allow sweat to escape to the outside. Unisex sizing, with no seams in the edges construction. Designed with Performance Round technology that guarantees the athlete constant temperature despite temperature fluctuations. Aimed at sports where there are significant temperature fluctuations. Supported by the Silver Base Layer mesh, developed with high antibacterial power.