- Size: 12-18 months - Comfortable Baby Christmas Costume: my first Christmas costume for boys is made of a high-quality cotton blend, soft to the touch, breathable and comfortable, pleasant to the touch and elastic. Give your baby the most attentive care. - Christmas set for baby: the Christmas dress for baby has the "My First Christmas" print and has buttons for easy on and off, so you can easily change diapers. Striped pants with Santa Claus embroidery and Santa Claus hat for baby. The baby will be very cute. - Baby Christmas costumes: this Christmas clothing for baby is suitable for babies and toddlers from 0 to 3 months, 3 to 6 months, 6 to 12 months, and 12 to 18 months. You can choose the appropriate size according to the size chart before purchasing. - Christmas costume for baby girl and boy: baby Christmas pajamas are perfect for Christmas parties, family gatherings, baby showers, cosplay, themed parties, daily use, outdoor activities, photo props, and more. - Christmas gift for baby: if you are looking for a unique Christmas gift to celebrate your baby's first Christmas, this Christmas set for baby is the perfect Christmas gift for your baby. Our Christmas costume for baby can celebrate Christmas and capture your baby's growth and life.