This off-duty combination of a white long sleeve shirt and grey chinos is ideal when you need to feel confident in your outfit. And if you need to effortlessly tone down this outfit with footwear, complete your outfit with a pair of grey athletic shoes. Can you see how very easy it is to look seriously stylish and stay warm when fall arrives, all thanks to ensembles like this? Dressed like this, any teenage boy is bound to put most of his peers to shame.