Take your laid-back style up a notch by wearing a grey v-neck t-shirt and khaki chinos. Infuse this ensemble with a touch of class with a pair of grey suede desert boots. This one is a viable choice when it comes to planning a standout ensemble for unpredictable fall weather. As you go into your 30s, you want to start dressing like an adult. If that's the case, inspiration like this comes in very handy.