Mens black casual blazer

A black blazer can be very versatile, as it goes well with pretty much any other type of clothing. You can dress it up with dress pants and black shoes, or down with a pair of faded jeans and sneakers. No matter what you combine it with, it adds a touch of class without being formal. Whether you go for a tight or relaxed fit is up to your own sense of style.
Mens black casual blazer:

Mens black casual blazers pictured:
Left: RNT23 JEANS Men’s Classic Notched Blazer
Middle: TheLees Mens casual peak lapels 2 button jacket blazer
Right: Doublju Mens Long Sleeve China Collar Jacket BLACK (US-L)

Traditionally, black is worn in fall and winter, but these are old fashion rules that no longer have to be respected.