A modern gentleman's polished wardrobe should always include such staples as a brown overcoat and a tan plaid wool blazer. Take your look a classier path by rounding off with black leather loafers. If you're wondering how you should dress as a 30-something Millennial gent, this ensemble gives a fair idea.
Tan Plaid Wool Blazer with Brown Overcoat Dressy Chill Weather Outfits In Their 30s
We love the way this combo of a brown overcoat and a tan plaid wool blazer immediately makes you look elegant and dapper. If you're not sure how to dress maturely, this ensemble is a practical illustration.