Size: 50cm The size selection wasn't available, so I selected 60cm, but it's the 50cm size. My daughter, who is of average build, was able to wear it until she was about six months old. Because it has ruffles, I used it as a skirt instead of an diaper cover. It's an easy-to-match color. There are no noticeable stains, but it has been used regularly, so please consider this if you are not concerned about normal wear and tear.