A beige crew-neck sweater and a white crew-neck t-shirt paired together are a perfect match. Rounding off with tan suede casual boots is a fail-safe way to breathe a hint of refinement into this outfit. When leaves turn yellow and red and autumn is in full swing, you'll love this look as your uniform for unpredictable fall weather. This combo proves that as a gent in his 40s, you have a wide range of outfit options.