Go for a straightforward yet sophisticated outfit by teaming a grey waistcoat and jeans. Dark brown leather brogue boots are a surefire way to add an air of stylish nonchalance to this ensemble. Certainly a great option if we're talking fashion for young gentlemen.
Why not consider pairing a grey waistcoat with jeans? As well as super functional, these items look awesome when combined together. When not sure about what to wear when it comes to footwear, go with a pair of beige suede chelsea boots. All in all, a good demonstration of off-duty fashion for 20-year-old men.