What would the overshirt in this photo would be called

Saw this photo from an interview with Hiroki Nakamura from 2009 and I've been trying to figure out what the overshirt thing he's wearing is. Because of the angle I feel like I'm not seeing enough detail, and I can't find any other picture with the same outfit. Doesn't have to be the exact product, just like, what it would be called. Looks vaguely like either a utility jacket or a chore coat but people with more knowledge might have a better description

(Bonus if you can tell if those pants are corduroy or not bc it almost looks like it but idk if its the photo quality)
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