The fabric for a suit jacket is something the trousers will be cut out of as well.
Blazer vs suit jacket difference.
Another defining feature of the suit jacket is that it should be a closer and tighter fit than blazers sports jackets.
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.
Still all that said it s rarely that cut and dried.
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.
The key difference between blazer and suit jacket is their formality level.
At most you ll be wearing a dress shirt and thin sweater vest underneath the jacket.
Finally a suit jacket above right will always be made of the finer stuff i e worsted wool and smooth to the touch.
This piece has been around the longest and is without a doubt the most traditional and popular.
Last but not least the dressiest of the three jacket types is the suit jacket.
If it doesn t it s either a blazer or a sport coat.
The blazer is very light comfortable to wear over multiple clothes.
A blazer must not be as poised as the suit jacket therefore it s typically unlined unpadded the lapels aren t edge stitched.
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.