Waterproofing spray is a protective coating designed to repel water from various surfaces, such as fabric, leather, and outdoor gear. It creates a barrier that prevents moisture from penetrating, helping to keep items dry and extend their lifespan. This spray is commonly used on shoes, jackets, tents, and other outdoor equipment. The application process is straightforward; users simply spray the product evenly over the surface and allow it to dry. Many waterproofing sprays are also breathable, ensuring that air can circulate while still keeping water out. Popular brands include Nikwax and Scotchgard, which offer a range of products for different materials.