Effortlessly blurring the line between dapper and casual, this combination of a cardigan and a v-neck t-shirt will likely become one of your favorites. Complete this outfit with black and white leather low top sneakers and the whole outfit will come together. Come summertime you're looking for a look to keep you comfortable and sharp –– this look is perfect for this time. This pairing shows that reaching age 30 is no reason to stop dressing casually.