Constructed of single filled cotton duck. Breathable, allows moisture to evaporate and helps prevent rot and rust. Process treated to ensure water resistance. Locked  stitched hems with rustproof grommets approximately 2 feet apart. Reinforced corners. Environmentally friendly, biodegradable product. Use to cover and protect machinery, farm equipment, building materials, lumber, steel and tools. Not recommended for highway use. It is a sewn cotton that will fray and rip if not tied down properly. Color - Tan.