Pairing a brown trenchcoat with a grey cardigan is an on-point option for a casually refined ensemble. This look is complemented perfectly with dark brown leather chelsea boots. The ability to wear looks like this is one of the benefits of transitioning from your 20s to your 30s.
When the setting calls for a casually stylish getup, dress in a brown trenchcoat and a grey cardigan. For a truly modern hi-low mix, introduce brown suede double monks to your outfit. A fail-safe option combo appropriate for 20-something gentlemen who like to dress more elegantly.