My suggestion would be to go to a local athletic store that sells athletic jackets, and see if you can find a similar looking jacket. To me it appears to be much like my biking jacket, minus the reflective strips. The ones in brand name stores may be a little costly, so maybe your local thrift store, and look for the same idea.
Otakon 2014 countdown has begun!
Yuuki Cross Thursday evening
Ezio Auditore Friday
Kisame Hoshigaki Friday evening
Lulu (FFX) Saturday