For a look that's absolutely GQ-worthy, go for an olive wool blazer and brown chinos.
White and Navy Long Sleeve Shirt with Blazer Smart Casual Outfits For Men In Their 30s
If you wish take your casual game to a new height, rock a grey plaid blazer with black jeans.
Consider wearing a charcoal blazer and olive chinos and be prepared to get the status of a visionary in the men's fashion department.
The formula for a neat and casually sleek ensemble? A charcoal overcoat with charcoal jeans.
The ultimate choice for casually polished menswear style? A charcoal blazer with navy jeans.