This shirt is a bit of a not to a throwback oversized vintage shirt. It's printed on a new brand called AS Color.
For the adult shirts, it's printed on the Heavy Faded tee. It's a bit similar to a Comfort Colors shirt but a real vintage vibe. It comes in Navy (darker blue) and in Faded Powder (lighter blue). 
 
For the youth shirts, it's printed on the Staple tee and comes in Cobalt (darker blue) and Caroline Blue (lighter blue). 
 
*We used AI generated images to help visualize the design but remember that the exact fit and length of the shirts may be different.