Leather jackets are always in fashion, and they’ve always had a cool factor that can’t be denied. Some people prefer to wear the motorcycle-type short and zippered jackets, while others like the sport-coat or blazer look. The latter is obviously less casual, and can even be worn in more formal contexts. You may want to get something made of a thin or soft leather, which should be lighter to wear, and give you more freedom of movement.
I like both of these, but the one on the right is a bad fit for the model they hired:
Mens black leather blazers pictured:
Left: BGSD Men’s Two-Button New Zealand Lambskin Leather Blazer
Right: Bonus Men’s Black Western Blazer Genuine Lamb Leather