For a look that's refined and totally envy-worthy, wear a grey crew-neck sweater with dark brown wool dress pants. The whole look comes together wonderfully if you complete your getup with dark brown suede brogues. As you can see here, it's very easy to look amazing and stay warm come chillier weather, all thanks to ensembles like this. Interested in outfit ideas for 20-year-old men? This combination is great inspo.