Using this January apres ski waffle pajama onesie is super easy. Just slip it on like you would any regular pajamas and enjoy the cozy feeling. When it comes to maintenance, you can machine wash it in cold water on a gentle cycle. Avoid using bleach as it may damage the fabric. Tumble dry on low to keep it in great shape. As for sizing, remember it runs true to size, so pick your usual size. And always keep it away from sharp objects to prevent any tears.