NAHA--After a rocky start, Kariyushi wear (the Okinawan version of the Hawaiian shirt) has become unique formal summer attire in the southernmost prefecture. People are often seen here wearing the ...

The grocery store chain Trader Joe's has a lot of singular qualities, from its wide-ranging selection of private label items to its inexpensive wine. Then there are the stores themselves.

And to this day, Trader Joe's employees - whom the company calls "crew members" - all wear Hawaiian shirts because of that. "We wear Hawaiian shirts because we're traders on the culinary seas ...