waterproof fabric
textile that resists moisture penetration, whether through inherent materials, construction, or finishing
waxed cloth
sturdy waterproof fabric treated with wax or parafin
oilcloth
fabric or cloth treated on one side with a waterproof coating, especially one made from linseed oil etc.
Gore-Tex
trademark for a waterproof, breathable fabric
tarpaulin
waterproof fabric used to make covers for cargo or equipment