Four-piece set of 100% cotton combination underwear, size 50-60cm. - Size: 50-60cm, 3-6kg - Material: 100% cotton - Design: Combination underwear - Quantity: 4-piece set There is some slight pilling, but they were washed frequently, about twice a week. It was convenient to have a lot of spares during the newborn period, so how about it? I'll give a small discount if you buy them with other underwear. Thank you for looking.