It is Baby Cotton romper ,Made of high quality cotton fabric.
Size details:
70 (0-6M): Length 21.1",Chest 20.3"
80 (6-12M): Length 22.2",Chest 21.1"
90 (12-18M): Length 23.4",Chest 21.8"
100 (18-24M): Length 424.5",Chest 22.6"
Please read the size details in Product Description before purchase.