Using this onesie is super easy. Just gently put it on your little one through the top and fasten the poppers at the bottom. When it comes to taking it off, unfasten the poppers and lift it over the baby's head. Remember, since it's made for a baby's delicate skin, always wash it inside out in cold water. Use a mild detergent to keep the fabric soft. You can tumble dry it on a low setting, but avoid high heat as it might shrink the onesie. And when you're not using it, store it in a cool, dry place to keep it in good condition.