When the heat of summer is on, a shirt that will keep you cool is essential. For casual days out of the office or dress down Friday, a long-wearing denim or grunge shirt is ideal. A sleeveless one will keep you cool. If the shirt is fitted, balance it with something loose below like hipster or boot cut pants. A skirt that does not fit so closely would also work well with a fitted shirt. The reverse applies; work a loose shirt with something fitted below. If you have a curvy body, choose pants or skirts that skim rather than cling. Tumblr has a collection of some really cute shirts.