Beecher Softball Splatter Tee or Crew or Hoodie....but Black Hoodies are out of stock in various sizes around the country so if you pick a hoodie and it's not available in the size you pick, I'll refund your purchase. Nothing I can do about it, Covid Sucks. (as of Today 3/22 Black Hoodies are in stock in Seatle)
I usually use a Ring-spun Cotton Gildan Softstyle but due to covid, manufacturing has been weak and they are harder to get in all sizes. If the Gildan isn't available I've been ordering American Apparel and Port Authority, both of which are pretty similar.