I selected size 60, but there was no 50 available, and the size is actually 50. These are two Mikihouse combination underwear pieces. The fabric is very soft and feels great. I've used various items, but I think the fabric is the best. I have many others, so these have only been worn a few times. The left one has no stains, but the right one has a faint yellow stain around the neck (see photo 4). I'd like to pass these on to someone who doesn't mind that they've been used by a child. Color: White #Mikihouse #CombinationUnderwear #Newborn