Longman Dictionary of Contemporary English
sport shirt
noun
EXAMPLES FROM CORPUS
▪ A chubby little man in a short-sleeved sport shirt and baggy gray twill pants came out the door.
▪ A guy in tattered cut-offs and garish sport shirt stands on a rock, brandishing a sword above his head.
▪ He was in white ducks, brown and white wing tips, and a yellow silk sport shirt.
▪ Like the way he was dressed now, the corduroy suit pants and pink sport shirt and scuffed-up black shoes.
WordNet
sport shirt
n. a shirt with short sleeves designed for comfort and casual wear [syn: polo shirt]