"Hakuna-matata" (pronounced [hɑˈkunɑ mɑˈtɑtɑ]) is a Swahili language phrase from East Africa, meaning "no trouble" or "no worries" and "take it easy". (literally hakuna: "there is no/there are no"; matata: "worries".) The 1994 Walt Disney Animation Studios animated film The Lion King brought the phrase to the masses, and we certainly won't have any worries wearing this super relaxed t-shirt.
This item runs small, ordering one size up is recommended.