Water repellent, water is generally applied to the surface of the fabric with a coating, so that the water will not easily penetrate into the fabric, generally forming water droplets on the fabric. But this is not really waterproof, and the water will stay in it if it stays for a long time.
Waterproof fabric, water does not penetrate the fabric, the fabric can be a coating or a waterproof material, and the water can be formed by the structure of the surface of the fabric to prevent water from penetrating. The surface of the fabric tends to be wet, and the inside will make the water drops slippery so the surface is dry!
Water repellent, generally water repellent is the affinity and resistance to water. It is time to focus on contact with water, because the waterproof fabric will degrade over time, and the longer it will come into contact with water, the more likely it will be permeable.