In 2023 Mark Norman Francis wore 34 different tshirts a total of 38 times.

1. January

   1. January 1st
   2. Last worn January 2nd
   3. Last worn January 3rd
   4. January 4th
   5. Last worn January 5th
   6. January 6th
   7. January 7th
   8. Last worn January 8th
   9. Last worn January 9th
   10. Last worn January 10th
   11. Last worn January 11th
   12. Last worn January 12th
   13. Last worn January 13th
   14. Last worn January 14th
   15. Last worn January 15th
   16. Last worn January 16th
   17. Last worn January 17th
   18. Last worn January 18th
   19. Last worn January 19th
   20. Last worn January 20th
   21. Last worn January 21st
   22. Last worn January 22nd
   23. Last worn January 23rd
   24. Last worn January 24th
   25. Last worn January 25th
   26. Last worn January 26th
   27. Last worn January 27th
   28. Last worn January 28th
   29. Last worn January 29th
   30. Last worn January 30th
   31. Last worn January 31st

2. February

   1. Last worn February 1st
   2. Last worn February 2nd
   3. Last worn February 3rd
   4. Last worn February 4th
   5. Last worn February 5th
   6. Last worn February 6th
   7. Last worn February 7th