In the original Star Trek series, blue uniforms were worn by science and medical officers. The Classic Star Trek Adult Blue Dress Couple's Costume features the women's version of this outfit. It's a blue mini dress with a black collar and gold bands around the sleeves. There's a classic Star Fleet insignia pin on the chest. Pick up go go boots, sold separately, as well as a Star Trek phaser. The men's costume, a matching blue shirt with gold stripes and insignia, is not included and needs to be purchased separately. Trekkies are die hard fans of Star Trek, and especially the original series. Classic characters like Mr. Spock and Dr. McCoy wore blue uniforms. You and your partner can dress in matching outfits when you go to a cosplay event or party. The Classic Star Trek Adult Blue Dress Couple's Costume will turn you into a Star Fleet officer. Remember, the men's costume is not included.