A beige shawl cardigan and a white dress shirt are absolute must-haves if you're picking out a dapper wardrobe that holds to the highest sartorial standards. Go ahead and make black suede desert boots your footwear choice for a more casual aesthetic. Seeing as it is getting chillier with each day, this look is a wonderful option for the time in between seasons. Overall, a popular choice if we're talking outfit ideas for men in their 40s.