This relaxed casual combination of a grey wool turtleneck and grey wool chinos is extremely easy to throw together in no time flat, helping you look seriously stylish and ready for anything without spending too much time going through your wardrobe. Black chunky leather loafers are a simple way to punch up your outfit. As you can see, it's very easy to look awesome and stay warm come cooler days, thanks to this ensemble. Men wondering how to wear smart casual style as you drift through your 20s, you have your answer.