A blue v-neck sweater and a long sleeve shirt? It's an easy-to-wear look that anyone could sport on a day-to-day basis. To inject a touch of stylish casualness into your look, throw white leather low top sneakers into the mix. There's nothing like a knockout getup to spice up a dull autumn afternoon. And if we're talking casual style for 50-year-old guys, this look looks great on almost any gent.