A white turtleneck and blue jeans are the ideal way to inject extra cool into your current casual lineup. Complement this getup with a pair of brown leather tassel loafers for a dash of refinement. Can you see how super easy it is to look sharp and stay toasty when colder weather hits, all thanks to combinations like this? This ensemble illustrates that as an over-40 man, you have a vast array of dressing options.