As you can see here, looking seriously stylish doesn't take that much effort. Opt for a black vertical striped suit and a grey v-neck t-shirt and be sure you'll look awesome. Why not take a classic approach with shoes and complement your ensemble with brown suede loafers? You actually can remain fresh yet stylish under the sweltering heat, and this outfit is a vivid example of just that A practical example for anyone who wonders how to dress at 30.