Otter Wax Heavy Duty Fabric Wax Water Repellent was developed in order to stay dry naturally. The wax offers long-lasting protection from the elements and contains only ALL-NATURAL ingredients from renewable sources. Otter Wax is the first and only water repellent wax that doesn't include paraffin, silicone or other synthetic ingredients. Otter Wax is formulated to be both highly effective and environmentally friendly. Otter Wax Heavy Duty Fabric Wax can be used on canvas shoes, hats, jackets, rucksacks, tents, or any other stout fabric.