This off-duty combo of a white and black crew-neck sweater and navy chinos is a tested option when you need to look stylish but have zero time to put together an outfit. To introduce a hint of stylish casualness to your look, complement your look with a pair of white and black leather low top sneakers. This one is an appealing option if you're searching for a comfortable transition look. A no-brainer combo proper for 20-year-old gents.