T-shirt

A T-shirt was a type of clothing, typically a short sleeved, buttonless, collarless garment which is pulled over the wearers head to cover their torso. Many T-shirt's sported designs or slogans, making the simple item of clothing an ideal way to display the wearers personal tastes.

In 2370 Garak sold "I Saw The Prodigal" T-shirts from his shop on Deep Space 9, as souvenirs for the Illumination of The Prodigal which was drawing visitors to the station. (DS9 novel: Devil in the Sky)

Department of Temporal Investigations agent Lucsly wore a "DeathTongue" T-shirt for a planned covert mission to the 20th century. (VOY short story: Almost... But Not Quite)