A beige cardigan and a dress shirt combined together are a sartorial dream for gents who prefer classy looks. You could perhaps get a bit experimental on the shoe front and dial down this outfit by rocking a pair of brown suede desert boots. This is a great yet age-appropriate combination for older men.
This is solid proof that a beige cardigan and a dress shirt are awesome when married together in a sophisticated outfit for today's gentleman. To give your outfit a more laid-back vibe, why not introduce beige suede casual boots to the equation? Classic combinations like this are worth having in your wardrobe no matter how old you are.