If it's ease and functionality that you appreciate in menswear, go for a white crew-neck t-shirt and navy jeans. Why not introduce a pair of navy and white athletic shoes to your ensemble for a more casual feel? During winter, when functionality is paramount, it can be easy to surrender to a less-than-stylish look. This look, however, is a stark illustration that you totally can stay toasty and remain stylish during winter. Wondering how to master casual outfits as you get into your 50s? This combination is a wonderful example.