This off-duty combo of a cardigan and a grey crew-neck t-shirt takes on different forms according to the way you style it. We adore how cohesive this outfit looks when finished off with grey suede slip-on sneakers. Can you see how super easy it is to look stylish and stay toasty when chillier days are here, all thanks to ensembles like this? Great for a 40-year-old if you want to project a more youthful spirit.