For something on the semi-casual end, wear this combination of a beige shirt jacket and a beige fair isle crew-neck sweater. Have some fun with things and complement your getup with a pair of beige suede driving shoes. It's is an appealing idea when it comes to a cool look that will take you from summer to fall. As you're maturing from your 20s to your 30s, you want to start dressing more professionally. If that's the case, combos like this are a safe option.