Blazers are versatile garments that can be dressed up or down, depending on the occasion. Some popular blazer styles include: Single-breasted blazer: This is the most classic blazer jacket mens style, featuring a single row of buttons down the front. It can be worn with dress pants for a formal look or with jeans for a more casual look. Double-breasted blazer: This style features two rows of buttons down the front, and it often has peak lapels. It is generally more formal than the single-breasted blazer and is often worn with dress pants. Slim-fit blazer: This style has a more modern, streamlined look than traditional blazers. It is cut closer to the body and often has a shorter length. It is often worn with slim-fit pants or jeans.