Go for a simple but stylish choice teaming a grey dress shirt and black chinos. If not sure as to what to wear in the shoe department, stick to burgundy leather casual boots. Semi-casual combinations for stylish young guys aren't actually that hard, as you can see here.
Black Chinos with Grey Dress Shirt Outfits In Their 20s
For an ensemble that's casually smart and gasp-worthy, go for a grey dress shirt and black chinos. Finishing with a pair of dark brown suede loafers is the simplest way to bring a little depth to your getup. This getup shows that looking good at 20 is easier than one might think.