"The Abominable Driver"
The Yeti helmet is a mythical creature that has its natural skin colored white and gray. This helmet is also referred to as the Abominable Snowman. It has blue or red eyes and has an angry expression on his face.
The Yeti helmet can be obtained by completing the mission, "The Yeti" in the Christmas 2015 Advent Calendar. This is the Day 6 Mission, and gives 200 coins upon completing the first time. To complete the mission, the player must first defeat 3 Snowmen and will then face the Yeti riding the Beast.