It doesn't look like a denim jacket. The way it wrinkles and appears so light make it look more like a chambray shirt. Levi's, in a collaboration with Opening Ceremonies, did a chambray trucker but it only came in yellow. I'm trying to find if they ever made one in blue as the blue collaboration jacket that was released at the same time was denim. They have made a women's version in blue so it's possible.
It could be a redye of the yellow, or another, jacket. It's entirely possible as it's so hot filming in GA and he wears several layers in character while everyone else is in much lighter clothing, chambray would make a lot more sense than denim, but would have a similar look. One of Jack Bauer's jackets was a redye so it's not unheard of.
Also, the color of the jacket would make more sense as a redye if it's chambray as chambray usually tends to have fairly visible white and blue(or whatever other color) threads and this jacket seems more like a solid color overdye.
Not entirely sold on the idea of a redye but I really don't think that's a denim jacket.
"I am reminded that if ignorance is a wellspring of fear, righteousness is its favorite refuge."