From 80stees:

Sublimation is the final frontier of shirt designs. And, this sublimated shirt shows the cast of Star Trek alongside the USS Enterprise. The Starfleet crew members shown on this shirt are James T. Kirk, Mr. Spock, Leonard McCoy, Montgomery Scott, Nyota Uhura, Hikaru Sulu, and Pavel Chekov. The back of the shirt shows the logo for the popular television series and several movies. This shirt is great for showing off in your future voyages and at conventions. Star Trek fans will live long and prosper with this sublimation shirt.

[Star Trek TOS Sublimation Shirt | Via]