athleisure

[ ath-lee-zher, ‐lezh-er ]
/ æθˈli ʒər, ‐leʒ ər /

noun

a style of clothing worn as athletic apparel but also suitable for casual, everyday wear: Athleisure looks great whether you're working out or just running errands.

Origin of athleisure

First recorded in 1975–80; ath(letics) + leisure