A dark green field jacket and navy jeans are indispensable menswear staples if you're putting together a casual wardrobe that matches up to the highest sartorial standards. You can get a little creative with footwear and tone down your outfit by sporting a pair of grey athletic shoes. This combo is a really nice pick, especially for fall, when the mercury is getting lower. Perfect if you're looking for some seriously inspiring relaxed style for over-40 guys.