This is a basic space helmet, or alternatively a diving helmet. It's made of two materials, a blue metal and a tinted black glass. The glass part is transparent so theoretically if you put a character head inside this it should show through. Though this only works in cycles and not in eevee for reasons entirely unknown to me - I used basically this exact material makeup for the windows in my solar ship and it worked fine. Point being, results may vary depending on game engine or renderer.
BLEND (Blender, filesize: 720 KB), OBJ (OBJ, filesize: 1.88 MB), FBX (Autodesk FBX, filesize: 674 KB), GLTF (glTF, filesize: 120 KB), ABC (Alembic, filesize: 93.3 KB), DAE (Collada, filesize: 234 KB), PLY (Ply, filesize: 4.32 MB), STL (Stereolithography, filesize: 1.33 MB)