Marine Upholstery
Marine Upholstery differs in that one has to consider dampness, sunlight and hard usage.
A vinyl or material that is UV and cold cracking resistant is the choice.
Stainless steel hardware such as staples, screws must be used for a quality job that will last. Also wood when used for a job must be of marine quality.
Usually a high resiliency, high density foam with a thin film of plastic over it is used to keep out water that might get by the seams and as well as aid in placing the vinal back on the piece.
Also a Dacron thread must be used in any sewing work. Nylon zippers are the choice as well