A white crew-neck sweater and olive chinos are must-have menswear essentials if you're putting together a casual wardrobe that matches up to the highest sartorial standards. Why not grab a pair of black and white canvas low top sneakers for a dose of stylish nonchalance? When spring is here, you'll appreciate how great this getup is for unpredictable spring weather. Perfect if you're looking for some amazingly inspiring casual style for 40-year-old men.