This is the shirt made famous by 3 Time World Champion, Ayrton Senna. Imported from Brazil. Officially licensed. An official product of the Ayrton Senna Collection. The Double S Polo Shirt is made from 96% Cotton and 4% Lyrca, and features the iconic Double S embroidered logo on the chest. Royalties from the sale of this product are paid to the Ayrton Senna Foundation, a non-profit organization entirely devoted to the personal and social development of children and adolescents in Brazil.