The ROKA T-shirts, originally a functional garment for the South Korean army, have become a popular fashion item among civilians in South Korea, including tourists from Japan and the USA. Named "ROKA" after the acronym for Republic Of Korea Army, these T-shirts are characterized by features like the Taegeukgi (South Korean flag) and Korean military names such as 'KOREA ARMY' printed on them. Initially available at military stores (PX), they have grown in popularity due to their comfort and affordable prices, typically ranging from 10,000 to 20,000 KRW (7-15 USD). These shirts are now sold in various colors and styles and are commonly worn by a broad demographic, including teenagers and women. Social media users have praised the T-shirts for their utility as both casual wear and comfortable sleepwear.