Servants issued them swim trunks at poolside cabanas.
You need to apply the Goldilocks criteria to swim trunks.
"These aren't swim trunks!"
He wore only a baseball cap, swimming trunks, old sneakers, and sunglasses.
She was naked, and Rick had nothing on but swimming trunks, and he was lying on her.
They stripped to swim trunks and pull-overs, then fastened on the harness of their breathing equipment.
Around the snout of the aircraft came a compact figure wearing a Hawaiian shirt, a Panama hat, and swim trunks.
"I have thrown those swim trunks away," he announced.
A therapist takes notes at poolside while Phaeton, a petulant young man, wearing sunglasses, swimming trunks and floating on his raft, "spills his guts."
He'd look fantastic in swimming trunks, with those long muscular legs and that broad expanse of chest.