Higgs wears a black gas mask that covers the entirety of his head. Over that, he wears a golden skeleton mask that covers the lower portion of his face as well as a black hooded cloak pulled up onto his head

With his golden mask, Higgs is able to summon Hunter BTs in the form of chiralium, and subsequently a Catcher BT to attack Sam. Furthermore, he is shown to be able to control the weather in the form of timefalls

A skull mask like the one Higgs wears in Death Stranding, used it for my Higgs cosplay

The mask is wearable, if you are looking for a realistic gold effect i suggest using gold leaf after sanding and finishing the print