For an ensemble that's stylish and Kingsman-worthy, make a navy turtleneck and a grey wool suit your outfit choice. Add a pair of black leather loafers to the equation and the whole ensemble will come together. This ensemble is most probably exactly what you're looking for as a man over 40.
Navy Turtleneck with Black Leather Loafers Dressy Outfits For Men After 40
This combination of a navy turtleneck and a navy suit is a safe option when you need to look like a complete gentleman. If not sure about the footwear, complement this look with a pair of black leather loafers. How's that for fashion inspo for dressing at 40?