Now you finally get to go on Away Missions with the 100 percent cotton Star Trek Engineering 2-Piece Pajama Set! This great set of PJs has both a black set of pants and a red long sleeve embroidered shirt...that is important because that Away Mission may be your last! Wait, did I just write that? No, you should be fine. I mean, what could go wrong with McCoy, Spock, and Kirk are with you? You're shaking your head. I suppose that's why being comfortable in the Star Trek Engineering 2-Piece Pajama Set is important!