Boat shoes (also known as deck shoes or topsiders) are typically canvas or leather with non-marking rubber soles designed for use on a boat. A siping pattern is cut into the soles to provide grip on a wet deck; the leather construction, along with application of oil, is designed to repel water; and the stitching is highly durable. Boat shoes are t... Found on http://en.wikipedia.org/wiki/Boat_shoe