For a casually classic look, opt for a navy pea coat and white jeans — these two pieces work really well together. A pair of grey athletic shoes will contrast beautifully against the rest of the outfit. Laid-back getups for 40-something gents aren't actually that hard, as you can see here.
A grey shirt jacket and white jeans will inject extra style into your current off-duty arsenal. Grey athletic shoes will add a dash of stylish effortlessness to an otherwise classic look. This getup shows how to keep killing in the casual fashion department as a man in his 40s.
Teaming a blue double breasted blazer with white jeans is an awesome choice for a casual and cool outfit. Complement your outfit with grey athletic shoes to effortlessly bump up the cool of this getup. This outfit should erase any doubts you had about wearing casual clothes in your forties.