Personalized Christmas Santa Pulse Heartbeat Love Family Matching Infant Dress. Show your love for Christmas trees and spread joy this holiday season with our funny Xmas design. Great for wife, grandma, husband, dad, and kids, this Christmas tree heartbeat outfit is perfect for the merry Christmas celebrations. It's also a fun way to await Santa Claus and imagine the workshop of elves at the North Pole. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!