iron man helmet 3d model

Wearable Iron Man Mark 100 cosplay helmet, fully hollow interior, large neck opening at the bottom, sized for a real human head and hair, realistic cosplay construction, separate faceplate, internal space for foam padding, LEDs and cooling fan, red metallic armor with gold faceplate, sharp white glowing eyes, advanced nanotech-inspired panel lines, sleek futuristic design, highly detailed mechanical seams, practical 3D-printable geometry, clean topology, no solid interior filling, open helmet cavity visible from below, convention-ready cosplay prop, photorealistic 3D model, studio lighting, front and bottom opening clearly visible.