Tie Dyed Onesies® bodysuits are great for any and every occasion. Wear them all on their own or use them as underwear for warmth. They're made from a soft cotton which is both comfortable and easy to clean. The higher-in-the-front bottom snap closure makes diaper changes simpler, while the expandable lap shoulder neckline makes it easy to slide the bodysuit over baby's head. Machine wash and dry. We offer five sizes: 3 months, 6 months, 9 months,12 months and 18 months.