From Longman Dictionary of Contemporary Englishleisurewearlei‧sure‧wear /ˈleʒəweə $ ˈliːʒərwer/ noun [uncountable] DFclothes that are made to be worn when you are relaxing or playing sport
Examples from the Corpus
leisurewear• For example, its outerwear sector has brought tremendous success in sports and leisurewear sales, said Coleman.• The leisurewear industry would come apart at the seams, literally, without this indispensable fastening. 