The brand with three stripes on the blue left sleeve is Adidas.

It is a trademark type of its brand, which represents the sports performance series. Adidas has three major series: sports performance series (three stripes), sports traditional series originals (clover) and sports fashion series neo (ball-type LOGO) (divided into three sub-brands: Y-3, SLVR, NEOLABEL). The founder of adidas, Mr. Adi Dassler, is a German with athlete status and shoemaker skills. Because he could fully understand the needs of athletes, he had exquisite craftsmanship and inventive genius; so in his life, he invented more than 700 sports-related patented products, thus creating the adidas sporting goods kingdom. Mr. Dassler began hand-making sports shoes in 1920. After that, athletes from all over the world often wore Mr. Dassler's sports shoes and won honors in the Olympic Games; his fame gradually became louder in the international sports world.