This is a set of underwear: two items from Uniqlo and two others (white, unknown brand). Made of 100% cotton, it's gentle on baby's skin. These underwear are made of breathable mesh material, making them comfortable to wear even in summer. They have buttons for easy diaper changes. The white underwear has some light stains, but they are still usable. Also, name stickers were attached to the tags, which will be removed before shipping.