depends what you mean by "jacket".
When it starts getting nice out, I start wearing blazers and suit separates like this:
on the weekends, you'll catch me in the jackets on the right ...

the blue/light blue and maroon/grey are by Puma from Footlocker.com. I used a 40% off code to get those for under $16 each.
The white one, is more of a fitted hoodie (without the hood), with a fleece interior lining from American Eagle. $20 on that.
For anything black and sporty (Pump, Nike, whatever), go to Footlocker.com.