Go for a simple but at the same time cool and relaxed option marrying a navy plaid flannel long sleeve shirt and a white crew-neck t-shirt. If you need to instantly kick up your ensemble with a pair of shoes, why not add a pair of tobacco suede chelsea boots to the equation? Nothing like a killer combination to brighten up a dreary autumn afternoon. When it comes to casual fashion for 20-year-old gents, this combo is perfect.
To achieve a casual outfit with a modern take, rock a navy plaid flannel long sleeve shirt with a white crew-neck t-shirt. Introduce a pair of grey suede desert boots to the mix for extra fashion points. As you can see here, this look is a really great choice, especially for transitional weather, when the mercury is starting to drop. Relaxed getups for stylish young gents aren't actually that hard, as you can see.