The importance of basics should not be underestimated, and a t-shirt is one essential you'll reach for for year-round. A basic tee integrates well into a variety of of ensembles, from laid-back to work-approved.
If you're looking to purchase a designer item, then what you're looking for is this Chloé Tank. While you're at it, also have a look at this Eileen Fisher Tank. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is Vince Tank. 'Cause you deserve nothing but all the finer things!