These are printed on the shirt option of your choice.
Top Left - Bella Canvas 100% Cotton
Top Right - Bella Canvas 100% Cotton
Bottom Left - Gildan Softstyle 60/40
Bottom Right - District Brand 65/35
Bella Canvas is a slimmer fit. If you are not familiar with how any of the brands fit, you are welcome to stop by the store to try on for sizing. The other two will be true to size and will not shrink.
If you are adding the number to the back, please put the number in the notes section when checking out. All numbers will be white. This is included in the price.