Baby's First Christmas Outfit | My First Christmas Outfit Find the cutest onesies and t-shirts that will be perfect to use as your Baby's First Christmas Outfit. Personalised just for you. Shop online. You'll love looking back on your baby's first Christmas outfit for years to come especially when it's personalised with their name. It'll look so cute when you post it for all your friends and family to see or when you take your bub to visit Santa! Choose from a range of different 1st Christmas designs that will be printed directly on to our super soft white cotton t-shirts, onesies and bibs, perfect for babies. Order ahead of time to get it in time for Christmas.