Use a short sleeve or three-quarter-length sleeve for best results. A three-quarter length sleeve may make it easier to pin the diaper on larger babies and toddlers, but may be more material than you need for smaller babies. Choose a size based on the size of your child. An older baby or toddler may need a large or extra-large shirt, but a newborn would likely only need a small.
Make sure you use a square receiving blanket. If you’re using another fabric other than a receiving blanket, cut it into a square that’s 34–36 inches (86–91 cm) on each side.
Smooth out any wrinkles in the blanket after folding it.
Instead of using pins, you can sew buttons or attach Velcro closures to the diaper.
