Such staples as a black shawl cardigan and blue jeans are an easy way to introduce extra cool into your current wardrobe. If not sure as to what to wear in the shoe department, opt for a pair of dark brown leather desert boots. So so as you can see, it's a sharp, not to mention spring-appropriate, combination to have in your transitional rotation. When it comes to casual style tips for men over 30, this look is ideal.