A little bit about waxed canvas:
Waxed canvas began as oilcloth in the 1800s, when sailors added linseed oil to their sails to better catch the wind. Since the 1930s, wax has been used to make cotton canvas water resistant. Natural and renewable, waxed canvas is a fabric invention that has been successfully adapted for many uses over the years.
Waxed canvas develops a patina over time, as the wax takes on the patterns of use.
Waxed canvas is water resistant, but not waterproof. Please don’t expose to heat or iron. The best way to clean dirt on waxed canvas is with water. Stains or spots may be cleaned with a soft cloth and mild soap. Rinse and air dry.