If you feel more confident wearing something functional, you'll love this off-duty combo of a cardigan and light blue shorts. A pair of derby shoes easily dials up the style factor of any outfit. A kick-ass ensemble like this one is just what you need on an extremely hot hot weather day. As you're heading into your 30s, you probably want to start dressing maturely. In this case, combos like this prove useful as a source of inspiration.