For my workout clothing I always look to Athletic Works. This clothing line has never failed me, is durable, and offers a broad range of superior fitting apparel. Plus Athletic Works is priced to suit any budget.
The Surplus Tank is stylish and made to fit your body. It has a built in sports bra for support. The shell material is 85% Cotton, 10% Polyester, and 5% Spandex. The bra is 95% Cotton and 5% Spandex.
I love how Athletic Works has a variety of styles to choose from: Relaxed, Classic, Modern, and Young Attitude. I tend to choose the Modern style because the cuts are made to fit and conform to your body. However, they do not bind and move with you as you move--kind of like a second skin.
This clothing line is shrink resistant so you can wash and dry them without worry. In my experience, they also maintain their color throughout their life. It seems the style fades before the clothing gives out, which is always nice and gives a big kudos for quality.