They are made with the best modern materials and come in light blue with a contrasting Navy waistband, which simulates the belted look of the originals. These modern trunks do have button down belt loop detail, so you could add a belt yourself if you really wanted.
Sizing wise you might want to go down a size from the measurements recommended on the Orlebar Brown website as the original size I ordered were far too big, indeed one good wave and the world would be in danger of seeing my Thunderball's. The next size down however fits snugly and feel much fore secure.
Whether you're in the Bahamas or Bournemouth these classic style shorts will look just as good and can be worn from the beach to the bar with no issues.