It was probably a 3d printed form, hen a mold was made of it, then tintanium was cast in it.
I case you are worried about it being too complex to make a mold of, molten titanium is WAYYY hotter than the evaporation point of 3D printable plastics, so the original form was lost.
Titanium is very strong, but also very brittle because of it's inflexible nature. This would be lightweight and strong, but could shatter if something hits it to hard or he stomps with all his weight. Plus, it might be a *little bit* pricey to repair.
I case you are worried about it being too complex to make a mold of, molten titanium is WAYYY hotter than the evaporation point of 3D printable plastics, so the original form was lost.