This casual combo of a navy long sleeve t-shirt and grey chinos couldn't possibly come across as anything other than devastatingly dapper. Let your sartorial sensibilities truly shine by rounding off your getup with a pair of white canvas low top sneakers. When temps are dropping and autumn is in the air, you'll appreciate how perfect this ensemble is for in-between weather. This outfit demonstrates that in your 20s your styling options are far from limited.