SIXS Underwear short-sleeved jersey, the ideal multisport product, whatever the conditions. Unlike a tank top, the short sleeve hugs the shape of the upper arm (the armpit), which is subject to abundant perspiration, keeping the skin dry. The lightest, most breathable polypropylene fiber on the market, combined with genuine carbon yarn, gives the product antistatic and heat-transmitting properties, protecting the body from the electrical charge caused by the friction of several synthetic fabrics (a typical feature of sportswear).