For a look that's casually sleek and GQ-worthy, consider pairing a pea coat with navy jeans. You can get a bit experimental with shoes and add black chelsea boots to the equation. Sartorial inspo like this will help you remain seriously stylish while moving into your 30s.
This is irrefutable proof that a pea coat and brown dress pants look awesome when worn together in a polished ensemble for a modern gent. Grab a pair of black chelsea boots to inject a dose of stylish nonchalance into this look. A no-brainer for gents in their 30s after a more mature image.