Dungeons & Dragons T-shirt : licensed by Hasbro 
based on the Saturday Morning Cartoon that aired on CBS from 1983 to 1985

The shirt graphic features the main cast of characters. 
** I have not seen this particular graphic anywhere else. I have tried searching for it online to get some info on it but can not find it. 

Shirt brand is American Classics. It is a cotton/polyester blend and is soft to the touch.

Shirt is a size medium
24" front collar to bottom of shirt
19" front across chest pit to pit

Fast 'n' free shipping within the USA.