Clothes worn for exercise or sports (e.g., tracksuits, T-shirts, shorts)—garments suitable for physical activity.
体育の時間は運動着に着替えてください。
Please change into your gym clothes for PE class.
彼は新しい運動着でジョギングに出かけた。
He went jogging in his new sports clothes.
この運動着は通気性がよく、汗をよく吸う素材だ。
These sports clothes are breathable and made of material that absorbs sweat well.