Stepping into her new role with absolute authority, the "I'm the Big Sister" tee is the ultimate power suit for the playground matriarch. It acts as a sparkly badge of honor, announcing that she has officially leveled up from "baby of the house" to "executive decision maker." Perfect for the girl who is ready to take charge, this shirt warns the world (and the new arrival) that she knows the ropes, she controls the toy supply, and she is fully prepared to lead the sibling squad with plenty of sass and style.
