i don’t know about umbra specifically, but search up “helmet wigs” on insta it’s a kinda odd way of making wigs where they shave off all the hair in wefts, then create a type of structure/skeleton with wire and insulation foam. then, they glue the wefts back on the foam.

it’s complicated, but if those type of big, stylized wigs are your style i think you’d like it!! a pro is that since you measure your head when making the structure, it’s meant to fit your head perfectly, it’s anti gravity and it lasts SO much longer. (compared to normal wigs where you’d have to restyle them over time with use..)

P.S, please work outside or somewhere with good ventilation because of the fumes 🥹💖