This baby onesie is really easy to use. Just put it on your little one by opening the bottom poppers. It's designed to be super comfortable for your baby. When it comes to cleaning, simply turn it inside out and pop it in the washing machine with cold water. Then, use a low - heat setting for tumble drying. Remember, it's made of soft cotton, so it's gentle on your baby's delicate skin. Avoid using harsh detergents that could irritate your baby. And if there are any stains, try to treat them as soon as possible for the best results.