If you're looking for a casual yet stylish outfit, wear a cardigan and a black crew-neck t-shirt. Complete this ensemble with white low top sneakers and you're all set looking spectacular. So if it's a blazing hot hot weather day and you want to look on-trend without exerting much effort, this getup will do the job in next to no time. Wondering how your styling lineup should look as you age into your 50s? This ensemble is a vivid example.