This is an Star Trek pajama pant! Space: The Final Frontier! Over the years, Star Trek has intrigued fans worldwide, from the early years of Star Trek The Original Series to the newest installment, Star Trek Discovery. Star Trek Starfleet Academy is located on the Earth in San Francisco. These pajama pants display a large logo that reads Starfleet Academy, San Francisco, MMCLXI, Ex Astris, Scientia. This is Latin for "Knowledge Comes From The Stars." The sleep pants have 2 hand-deep pockets, a button-fly, and an elastic stretch waistband. gift for fans of the classic Star Trek Tv series!! These are the best!