For something more on the cool and laid-back end, you can dress in a sweatshirt and a short sleeve shirt. A pair of beige canvas low top sneakers is a great option to finish this outfit. This outfit proves that as a gentleman in his forties, you have a wide range of outfit options.
Try pairing a sweatshirt with a short sleeve shirt to create an everyday outfit that's full of charisma and character. A pair of navy and white canvas low top sneakers looks amazing rounding off this getup. As you can see here, in your forties you still have a vast array of sartorial options.
Who said you can't make a style statement with a relaxed casual ensemble? Draw the attention in a sweatshirt and a short sleeve shirt. Make this getup more current by finishing off with a pair of white canvas high top sneakers. When it comes to casual outfit ideas for middle-aged gentlemen, this ensemble is perfect.