Rock a navy crew-neck sweater with beige chinos to create a neat and relaxed look. Let your outfit coordination chops really shine by rounding off your look with a pair of white canvas low top sneakers. So if you're on the lookout for an outfit that's seriously stylish but also entirely season-appropriate, this is it. Think it's hard for 40-something men to nail modern casual outfits? This pairing is indisputable proof of otherwise.