Personalized Keep Calm Graduation Grandpa Men's Tank Top. Funny Men's Tank Top - Black with graduation cap for proud grandpas and papas of graduating high school, college, PHD, med school, law school, nursing school graduates says I CAN'T KEEP CALM I'M THE PROUD GRANDPA OF A GRADUATE. Perfect for family photos. Pre-shrunk 100% cotton 6.1 ounce Quarter turned Adult: S, M, L, XL, 2XL