THE VINTAGE RACER'S OPEN-FACE DREAM: The Arai GP-JET/f is another representation of Arai's pursuit of a comprehensive package, one providing comfort and function in an attractive package whose simplicity and smooth lines belie the complex energy-management system within. Its Type "f" shell, with updated and improved shell shape and construction, also incorporates lower-shell-molding details to add strength. The same care and attention the Arai puts into every helmet can be found in the details of the GP-JET open-face series. The interior fit is typical Arai, benefiting from over 50 years of research and refinement, and resulting in a helmet that more closely matches the shape of the human head. The fit is snug, allowing for the smallest possible helmet to be worn while still being comfortable. (Most often, a poor-fitting helmet results in the driver shoozing a helmet that is a full size - or more - too large in an effort to avoid painful pressure points inherent in a poor fit.) Meets Snell SA-05 standards.