To get urine smell out of clothes, start by rinsing the affected area with cold water to remove any excess urine. Then, soak the clothes in a mixture of water and vinegar or baking soda for about 30 minutes. After soaking, wash the clothes as usual with detergent and cold water. Hang them to dry in the sun, as natural sunlight helps eliminate odors. If the smell persists, repeat the process or use an enzyme-based cleaner.