also: スポーツウエア
noun
sportswear; activewear
Clothing designed for sports or exercise, often used in everyday casual contexts as well.
新しいスポーツウェアを買ってジムに行くのが楽しみだ。
I'm looking forward to going to the gym in my new sportswear.
運動着 is a more general term for exercise clothing, often used for school gym uniforms, while スポーツウェア specifically refers to modern athletic wear.
Loanword from English 'sportswear', adapted into katakana.