Rolly Romero will step into the ring against Ryan Garcia on Friday night in some custom, "Marty McFly" Nikes ... and, Great Scott, they're cool!!!
TMZ Sports has learned Jose Coronado, AKA Aztek Kustoms, "deconstructed" the $40,000, "Back To The Future"-themed kicks so the 29-year-old could wear them in the ring for his huge tilt with King Ry ... and check 'em out, they're fully functional.
The shoes -- which were originally created by the Swoosh to honor the self-tying kicks Michael J.