Stripe Sea Island Cotton Boatnecks by John Smedley, luxury made relaxed and easy. Navy blue with white or white with navy. The World's Finest Knitwear John Smedley makes splendid, completely current knitwear in the world's oldest manufacturing factory, dating from 1784, in the English Midlands. Smedley Sea Island Cotton is legendary for its silken smooth, lightweight comfort, flawlessly knit for a luxe look and long wear.