You wear a tracksuit for physical activity. They’re available from places like JJ Sports, so the clue is in the name. Wearing a gold / cream tracksuit in the middle of town, with a cap on, hood up, eating chips, shouting, “Oi, Dazzo, don’t forget that fiver yow owe me ya twat” and spitting on the floor – well, that’s just not how sports people do things.
