A soft-tool defense taken from historical civilian karate - the coat, the sash, the towel - anything with mass and length becomes a bridge between you and the threat.
Use a folded jacket to intercept and redirect an incoming attack.
Fold the jacket in half over your forearm, hem hanging free. A wrapped hand cannot release; a folded drape can be dropped, thrown, or repositioned instantly.
When an attack comes, meet the wrist, not the weapon. The wrist is the pivot, and controlling it neutralizes whatever it holds.
Redirect to the outside line on contact. The jacket cushions the impact and blinds their view of your other hand, which is already moving to counter. Drop the jacket the moment it has served its purpose.