A free mod for Mass Effect 3, by horography.
The Tank Top and Scarf Casual Outfit for FemShep is a casual ensemble for female Commander Shepard. This pack contains the lower half of the game's protagonist, plus a tank top and scarf. It was designed to look like a real-life product, so you can use it as a quick reference.
Casual Outfit
The black N7 tank with red scarf is the most casual of the bunch.
Spectre
The second option is the grey Spectre tank. It has a more formal look and is suitable for wearing to an event.
Lace
Finally, we have the black lace option.
The product is a combination of the game's tank top and scarf.