This papercraft is Gordon Freeman's HEV Helmet, one part of HEV Suit (Hazardous Environment suit, often called the Hazard Suit for the sake of convenience), based on the Half-Life science fiction video game. The paper model was created by PepMaster. The finished model is about 280mm High.
You can download the papercraft model template here: Half-Life - Gordon Freeman HEV Helmet Papercraft Free Download
For this paper model, we recommend that you use the material (Paper, Paint, Glue, etc.) to make. Here are Great Deals, and here are 100s of card making ideas. There is FREE sewing patterns that you may need.