These men's sports shorts are super easy to use. Just put them on and you're ready to go for your workout or any sports activity. When it comes to sizing, as mentioned, Asian sizes are smaller, so pick a bigger size if you're in between. Always check the size chart before buying to avoid any issues. If you're not sure, our customer service is there to help. As for maintenance, you can machine - wash these shorts in cold water. Use a mild detergent. Avoid using bleach as it may damage the fabric. Hang them to dry to keep their shape. Also, don't be surprised if the color on your screen doesn't exactly match the real shorts because of computer display differences.