SIXS' take on boxer shorts have all the strong assets of the UNDERwear range: no seams for absolute comfort, the unique and patented SIXS original carbon underwear ® fabric protects your skin from excessive perspiration and heat • Antistatic system : The carbon yarn isolates the static electricity caused by the rubbing of fabrics • Seamless technology : Fewer seams 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