Amp up your sprezzatura game by opting for a black overcoat and a blue denim shirt.
Blue Denim Shirt with White Crew-neck T-shirt Fall Outfits For Men
This combination of a dark green suede shirt jacket and blue jeans is an appealing option for when it's time to go off-duty. For something more on the classier side to finish your outfit, introduce dark purple leather loafers to the equation.
When the dress code calls for a polished yet neat ensemble, you can easily wear a brown shirt jacket and a navy denim shirt.
If you enjoy comfort dressing, consider wearing a navy denim shirt and khaki chinos.
So as you can see, looking effortlessly classic doesn't take that much effort. Just try teaming an olive cotton blazer with olive jeans and be sure you'll look incredibly stylish.