Last but not least the dressiest of the three jacket types is the suit jacket.
Blazer vs suit jacket difference.
Suit jackets can also be sold as suit separates where the pants aren t included but you re still meant to buy the matching pants to complete the set suit jackets are often made of wool although summer styles might be made of linen or cotton.
The fabric for a suit jacket is something the trousers will be cut out of as well.
The key difference between blazer and suit jacket is their formality level.
If it doesn t it s either a blazer or a sport coat.
Another defining feature of the suit jacket is that it should be a closer and tighter fit than blazers sports jackets.
A blazer must not be as poised as the suit jacket therefore it s typically unlined unpadded the lapels aren t edge stitched.
Blazers are less formal than suit jackets.
The blazer is very light comfortable to wear over multiple clothes.
This is because suit jackets aren t meant to be layered.
A suit jacket is more formal than a blazer while a blazer is less formal than a suit jacket but more formal than a sports jacket.
The single most distinguishing factor of a suit jacket is that it has a matching pair of trousers that was made from the exact same swatch of fabric.
Still all that said it s rarely that cut and dried.
This piece has been around the longest and is without a doubt the most traditional and popular.