The term AVIA COMPETITOR can be summarized by two crossword solutions: NIKE (4 letters) and ADIDAS (6 letters). NIKE is an American multinational corporation that designs, develops, manufactures, and sells athletic footwear, apparel, equipment, and accessories. Founded in 1964, it is one of the world's largest suppliers of athletic shoes and apparel and a major manufacturer of sports equipment. ADIDAS is a German multinational corporation that designs and manufactures shoes, clothing, and accessories. It is the largest sportswear manufacturer in Europe and the second-largest in the world, after Nike. Both companies are major competitors in the global market for athletic apparel and footwear.