My sister, Kendra, bought these Class of 2030 t-shirts for "Twin Power" to wear to chart their growth from Pre-K (their current grade level) until their senior year of high school which starts in 2029. Harper-Lynn's is an XL and Matt's is a 2X.
I think this is such a fun way to watch them grow up each year. These two love each other so much. This year Harper-Lynn and Matt are in class together, but we'll see where they end up in the coming years.