Justdoit is the advertising slogan of Nike, and the clothes of "justdoit" have no Nike logo, because it is not produced and sold by Nike. These clothes are usually made by some small clothing brands or individual designers. They may use the slogan "Just do it" to express their brand ideas or design ideas. Although these clothes have no Nike logo, the slogan "Just do it" has become a cultural symbol and has been widely used and spread.