The Moro Barong is one of the weapons of certain Kuntao styles in the Philippines. This is NOT a weapon of Kali, Arnis or Eskrima as so many put as the symbol on their t-shirts, as in representing those styles. Thats a misunderstanding of true Filipino history.
You can find eye candy pictures and learn more about this beautiful blade on – https://www.traditionalfilipinoweapons.com/Barong.html