Why not wear a white long sleeve shirt and beige chinos? Both items are very practical and look amazing teamed together. If you don't want to go all out formal, introduce white and navy leather low top sneakers to the equation. This combo shows that dressing stylishly as a mature guy is not that hard.
White Long Sleeve Shirt with White and Navy Leather Low Top Sneakers Smart Casual Cold Weather Outfits For Men After 40
This combination of a white long sleeve shirt and charcoal sweatpants is extra versatile and creates instant appeal. Rock a pair of white and navy leather low top sneakers to tie the whole getup together. Interested in dressing tips for middle-aged men? This combination is great inspo.