Personalized Never Too Old To Believe Women's Plus Size T-Shirt. Cute Christmas Women's Plus Size T-Shirt - White says YOU'RE NEVER TOO OLD TO BELIEVE with silhouette reindeer and stars. You're never too old for the magic of Christmas. Perfect for adults and aging elves. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)