The starship Enterprise is all about the final frontier and this Star Trek t-shirt is too.
On the t-shirt, you can find the spaceship with on top in gold the communicator badge we all know and to top it all off a white banner that says “The Final Frontier”.
So if you want the world to see what you think is the final frontier and probably the best movie and TV series then you just need to wear this Star Trek t-shirt.