Become the stoic first officer of the USS Enterprise in a Spock Costume for men The long-sleeved blue shirt has an attached black dickie at the V-neckline and silver Starfleet symbol print on the chest. Silver stripes signifying rank on the sleeves are the finishing details to your Starfleet first officer look. Costume parties are sure to be an interstellar adventure for everyone in the cosmos. Live long and prosper this Halloween season.