The long-sleeved T-shirt is the all-season sports underwear by SIXS. Thanks to the SIXS original carbon underwear ® technology that protects your skin from excessive perspiration, it also keeps your arms dry during sports activities, guaranteeing a cool feeling in the hottest days of the year, and giving protection against the cold in winter • Antistatic system : The carbon yarn isolates the static electricity caused by the rubbing of fabrics • Seamless technology : Seamless garment on the torso to provide absolute comfort • Materials : Carbon Underwear® Breathability and thermoregulation without compromise. Perfect for all seasons of the year. Antistatic fabric • 77% Polypropylene, 15% Polyamide, 5% Elastomer, 3% Carbon Fiber