A navy blazer and black jeans are an easy way to infuse some manly sophistication into your casual styling rotation. Finishing off with a pair of white and navy athletic shoes is a fail-safe way to introduce a sense of stylish nonchalance to your ensemble. This outfit isn't a hard one to score and it's summer-ready, which is more important when it's baking hot outside. When it comes to casual style tips for men over 40, this getup is perfect.