This casual combination of a shawl cardigan and navy jeans is simple, on-trend and very easy to recreate. Add grey suede slip-on sneakers and the whole ensemble will come together really well. As you can see here, it's extremely easy to look dapper and stay warm when cooler weather arrives, all thanks to ensembles like this. As you see here, as a gentleman in his 40s, you have a vast array of style options.