"Spirited Away" (and other anime) clothing question – what's this piece of clothing called?

Finding the right kinds of clothes for your newborn, baby or infant is very important for your and for your baby. It can be one of the many joys of parenting finding lots of stylish, cute and comfortable infant and baby clothing that is both chic and practical.
With that said, it's very important that the clothes you pick out for your child will be not only comfortable and fashionable but also safe, healthy and functional.
There are many brands, styles and colors to choose from. Always find natural fabrics made of quality cotton and organic materials whenever possible.
Choose colors wisely, as the very light colors are not always suited to your baby for practical reasons. Most whites and yellows tend to be difficult to get rid of the stains, but the darker colors hide them a lot better, in general.
Some name brands and trendy baby and infant garments are just not available in the smallest sizes, so your choices may be limited at times.
A hard fact about buying baby clothes is that the designer name brands items are just about as expensive as the adult size counterparts, so use some discretion before wiping out your entire budget. Keep in mind that babies quickly outgrow their clothing sizes and just buy what you need for a time and see what you will need in a few months.