Sport Coat vs. Blazer vs. Suit Jacket
The Sport Coat
Starting with the least formal of the three, the “sport coat”.
Offered in a wide variety of colors and patterns.
Can be less structured and fitted, providing the ability to layer.
Key Fabrics and Patterns
Wool Silk Blend
Being the least formal of the three jacket types, the sport coat should be your go-to when you want to elevate a pair of jeans or trousers that isn’t identical in color to your sport coat. Sport coats also do well when layered over sweaters, turtle necks, or other thick garments (but they will also look sharp with any standard tee or button-down).
Dressier than a sport coat but not as formal as a suit, the blazer serves as a nice middle ground piece that elevates outfits without going overboard.
Highly versatile - can be dressed up or dressed down.
Traditionally navy but can come in a variety or colors. (Although, if you only own one blazer it should be a navy one. Your second should be black.)
Usually more tailored than a sport coat.
Feature buttons that are traditionally gold, silver, or mother of pearl.
To dress a blazer down, pair it with jeans or khakis. For a more formal look it can be paired with tailored slacks. Blazers look most classic with a crisp button down shirt, but can be worn with a t-shirt, golf shirt, or thin turtle neck.
The Suit Jacket
The dressiest of the three jacket types is the suit jacket which is the most traditional and popular of the three.
Comes with a matching pair of trousers that is made of the same fabric.
Feature notch and peak lapels.
Are the most fitted of the three pieces and are not meant to be layered.
Suit Jackets should be worn with their matching trousers. In terms of shirts, it is best to stick with dress shirts. Ties are typically worn with suits; however, a suit worn without a tie has become fashionable and is a great business casual look.