There are a lot of v-neck T-shirts on the market these days. The trick is finding one that's thin enough to be worn as an undershirt with button-downs, but substantial enough to be worn by itself, with a pair of shorts on the weekend or a blazer at dinner. Your best bet for summer is the Hanes Tagless ComfortSoft (a mouthful, we know), and the    icons explain why.

$10 for a pack of three,
at Hanes.com.