Longman Dictionary of Contemporary English
sports coat
noun
EXAMPLES FROM CORPUS
▪ He always wears a sports coat and flannels and a pinned tie.
▪ The other in his 30's, with ginger hair and moustache and a tweed sports coat.
WordNet
sports coat
n. lightweight single-breasted jacket; often striped in the colors of a club or school [syn: blazer, sport jacket, sport coat, sports jacket]