My 3D model of an F1 Helmet made using Fusion 360. Featured include a functional Visor (with 45 degrees revolute joint), Inner foam lining for a comfort fit. Breath holes up front for air ventilation and space allowances for installation of microphone assembly and possibly a water pipe. 
The Visor is tinted and comes with a UV protection Layer and a hydrophobic surface to facilitate undisturbed line of sight in all weathers
The dummy inside is a 3d model with proportions of an average sized human head. Source: Autodesk Design Academy. 
The Decal on the back is a SHIB coin symbol (associated with the cryptocurrency which goes by the name of a Japanese dog breed - Shiba Inu. The vibrant cerulean blue body was chosen to add contrast to the decal and for easy recognition. 
F1 Helmet Design
Published:

F1 Helmet Design

Published: