In the United Kingdom, a term for old-fashioned canvas sneakers, not widely seen any more. The ribbing on a Plimsoll bears a resemblance to the legal load markings ( Plimsoll lines) painted on ships. Most sneakers in the United Kingdom are now referred to as " trainers."

waterlines to show the level the water should reach when the ship is properly loaded

a light gym shoe with a rubber sole and a canvas top