Used from newborn to about 3 months. I had other underwear and rotated through them. It was large when the baby was a newborn, and although the baby's tummy was chubby around 3 months, it could still be used. The white underwear has some yellowing around the neck, so please check the photos. There are no other noticeable stains. This product originally cost about 6,000 yen. A 3-piece set of cotton short-sleeved wrap bodysuits with snap buttons for easy on and off. - Colors: White, Pink, Orange - Design: Short sleeves, wrap type - Quantity: 3-piece set - Material: Cotton - Features: Snap buttons, easy to put on and take off Thank you for looking.