Black, Grey & White
Or you can use two other colors like
purple, red , yellow, blue, green, ect
You can wear the layered tanks with:
Jeans, Skirts, Shorts, Capris
Anything basically, even wear them inside with a:
Basic top, Cardigan, Blazer, Hoodie
Wearing the tanks looks a lot better then wearing them plane, it looks more decent & stylish!
This is one of those styles that you can wear in the summer, winter, spring & fall.