Helmet 3D model and printable model — professional 3D model by dream-yagiz (CGTrader). Price: $7. Technical data: 300000 polygons, 250000 verts.
STL (Stereolithography, filesize: 18.9 MB), OBJ (OBJ, filesize: 32.3 MB), FBX (Autodesk FBX, filesize: 52.8 MB)