The down jacket repair patch is made of nylon, waterproof, washable, not easy to break or deform, durable, and easy to peel and stick.Nylon fabric repair patches can quickly and instantly repair tears or holes in fabric without leaving obvious repair marks, suitable for nylon down jackets, jeans, tents, sleeping bags, outerwear, umbrellas, etc., and also great for your hand-sewing projects.Nylon repair patches are easy to use, just paste them directly onto the specific area. You can also use an iron to press the patch to make it more stable. They can be washed after 48 hours.Notice: Repair patches can only be used on fabrics and leathers with smooth surfaces. Fabrics with rough surfaces, such as cotton, canvas, velvet, etc., cannot be repaired.