He's wearing a "buwaya" (the necklace) and a "suklong" (the hat). The "buwaya" is a necklace made from boar tusks and intricately-weaved rattan/bamboo.
The barely visible little hat is a "suklong" or "saklong". This hat is either plain or with decorations. This one has beads and boar tusks attached to it. Other terms for the "suklong" in the Cordillera region: 𝗯𝗮𝗹𝗹𝗮𝗸𝗮, 𝗱𝗮𝗹𝗮𝗱𝗮𝗹, 𝗸𝗮𝗹𝗮𝘁𝘁𝗮𝗴𝗮, 𝘁𝗶𝗻𝘂𝗼𝗱.
