Why not reach for a grey plaid blazer and a white crew-neck t-shirt? These items are very practical and look good paired together. You could perhaps get a bit experimental when it comes to footwear and complement this ensemble with dark brown suede tassel loafers. Now that's how you do smart casual as a gentleman in his 40s.
If you take fashion seriously, go for an effortlessly neat look in a grey plaid blazer and a white crew-neck t-shirt. Black leather chelsea boots are a fail-safe way to inject an added dose of style into this look. This combo is most probably exactly what you've been looking for as a mature gent.
You'll be amazed at how easy it is for any gent to get dressed like this. Just a grey plaid blazer and a white crew-neck t-shirt. Our favorite of a ton of ways to finish this ensemble is navy and white horizontal striped canvas slip-on sneakers. A reliable option combination proper for 40-something gentlemen.