tracksuit
n. countable A2 Elementary UK //tɹˈæksuːt// track·suit
n. a set of clothes made of soft, stretchy fabric. It usually includes a jacket and matching trousers that you wear for exercise or when you are relaxed.
n. a set of clothing consisting of a jacket and matching trousers, typically made of a stretchy, synthetic fabric. Often used for athletic training or casual wear.
He changed into his tracksuit before going for a run.
The gym provides clean towels and lockers for members who arrive in their tracksuit and trainers.
While originally designed for high-performance athletics, the tracksuit has evolved into a staple of urban fashion, often worn as a symbol of relaxed, contemporary style.
From track + suit.