'I was a pretty natty dresser myself. Once upon a time. Like Mr F, the picture of elegance. But now. Appearances. What do they matter?' I indicated my own clothing with a dismissive gesture.
-- Charles Chadwick, It's All Right Now
The captain, in his natty uniform of blue and gold, stepped forth upon the bridge to take command, and raised his banded cap in recognition of the constant cheer from the host ashore and the throng of blue shirts on the forecastle head.
-- Charles King, Found in the Philippines
Natty stems from the common word neat. It first arose in the late 1700s.