Items purchased from Nissen. My son, who is currently in first grade, wore these from when he was in preschool until recently. It's a top and bottom set, but I never had him wear the pants. The top T-shirt shows signs of wear. (It's hard to see in the photos, but there are bumps around the stomach and shoulders.) I've also measured the size flat, so please check it. The fabric is mesh-like. Gender: Boy Color: Purple系 (Purple-ish) Season: Summer Type: Short-sleeved T-shirt