"Hey, the stars are pretty out here, wanna go for a walk with me?"

Long explanation: Tori's leotard-like undersuit is a sophisticated layer of nano cells that can re-configure for various situations. It is capable of projecting hard light force fields to seal against vacuum, pressure, radioation, and mid to long range ballistic trauma . In its most basic configuration, it can function in even the most hazardous environments for up to 45 minutes. The addition of various hard suit modules can extend life support to as much as 12 hours. Alliance personnel typically wear these flexible suits beneath their standard uniforms aboard starships to ensure survival in the event of explosive decompression. The suit also contains a suite of smart linked applications that can interface with standard issue neural and ocular implants.

Short explanation: Leotards are cute. This one's fancy. Indistinguishable from magic. Still can't breathe in space but it's cool. Blah blah blah.