On the formality rate, the navy blue suit blazer lies just under the suit blazer and just above the sports coat, but worn up or down to incorporate a wide variety of fashions and dress codes. While blazers come in several colors, the most popular and versatile of this already adjustable piece is navy blue. Dressy and muscular, a navy blazer looks magnificent and goes with just about every dress code.

To improve its versatility, even more, choose a single-breasted jacket, with synthetic or mother-of-pearl buttons that coordinate or complement the pretext of the fabric. While a double-breasted cut with brass buttons is most classic, it’s also more social looking, restricting your ability to carry it in a more casual way.

Semi-Formal/Business Attire

Classic semi-formal requests for a dark navy blue suit, but you can also go beyond wearing a jacket with separate slacks, particularly if the event is in the daytime. Duplicate for clothing up a blazer as a business dress when you need to appear professional, but don’t need to wear a complete suit.

A more structured, tailored-looking blazer works best in these situations; if you have a double-breasted blazer and one with brass fasteners, this is where it would be most relevant to break out.

On top, a light-shaded shirt matches nicely with the dark navy blue suit shade jacket, so pair it with a formal white shirt for a more business look or a light blue shirt for a less social one. On the bottom, you want to wear slacks that complement the jacket.

Black and navy are over; you want your trousers to neither be darker than your blazer nor too alike in color to it. Otherwise, the overall outlay will resemble too much like a suit that doesn’t quite harmonize. Gray wool pants are a great choice; light-colored slacks or chinos are a little less formal, but still, look fine.

Smart Casual

This section is the sweet spot for the jacket. It’s ideal for those times when donning a whole suit is out, but you still want to look dressy and put-together.

Whether you’re hanging out for a nice dinner, visiting a networking event, going to an Easter church ceremony, meeting your girlfriend’s parents for the first time, or headed to back-to-school night, the jacket is a great alternative.

The quintessential jacket combination is blazer + white button-down + khaki slacks. Worn with great-fitting pieces, it’s a simplistic get-up that can still really look first-class. But, it can also be a little bore and read as an older man’s appearance (which may or may not be supportive, depending on your age). It’s obvious to mix things up a tad, though; sub in a light-hue, striped, or checked apiece up top, and even try rocking denim on the bottom. Complement the expression with leather formal shoes or boots and a more informal leather belt — hard, braided, or leather-backed strip. Consider tucking in an interesting-patterned pocket square for extra aptitude as well.

Casual

 Like other sports jackets, navy blue suit blazers don’t make for the most natural pairing with very easygoing clothing. Their more solid material and more structured and dressy look can conflict with leaner, softer, looser duds.

Donning a button-down shirt under a blazer will always look more genuine, as the two pieces complement each other. After saying that, it’s likely to wear a t-shirt or polo shirt under a jacket and have it come off modestly, as long as you keep a few things in mind.

First, only pair a polo or tee with a soft-shouldered, more disorderly, surely single-breasted blazer, ideally in a real material like cotton or linen. Make sure the shirts are thick or striped in the shade (no printed designs).

And know that the delicate collar of polo can wrinkle and collapse behind the collar of your blazer. So try to keep it straight and upright with its points inside the blazer’s lapels. Collar support can help with this. Jeans or khakis both will match well with a tee/polo + blazer combination. And when dressed in a natural leather or webbed belt, and boot footwear or canvas sneakers.