Gemplers 14.5 oz Weather Tough Breathable TarpGemplers 14. 5 oz Weather Tough Breathable Tarp is a polyester canvas breathable tarp that combines the best traits of polyethylene and cotton canvas tarps so whatever your covering is protected from rain, snow, and sun while mildew and condensation damage is avoided. It features brass spur grommets that don't rust or tear out like standard grommets. Weather Tough Tarp Advantage Over Polyethylene: Breathability prevents condensation damage Stronger