Why do so many footballers wear these socks? A revolutionary idea that sponsors and football association don't like very much

Although they make up one-third of each team's kit, socks are probably the most undervalued item within the uniform. Omar Sivori, who wears low-socks with a rocker attitude, has fuelled the fascination around playing socks at a time when football style was not yet as coded as it is now. Today it often happens to notice footballers' socks featuring small 'dots', which can be glimpsed under the socks and just above the shoe. These are revolutionary socks that in recent years have made their way globally, recognizable through those rubber 'dots' on the heel: the Trusox. 

The American company has started to produce Trusox in many colourways to match the exact colour of the kits. But beyond the attempts to 'hide' the socks, the idea that footballers like so much continues to annoy kit suppliers and even federations. During the 2018 World Cup, for example, the captain of the Swedish national team Andreas Granqvist and the players of the English national team were fined by FIFA - which has adidas as a sponsor - of around 50,000 euros, enforcing the strict rules of the largest FA in football. Although these cases are frequent, at the moment the war between sponsors and Trusox is open, forcing the players to find a way to avoid the fines of the federations.