The ST4 GT W is designed to satisfy those closed cockpit drivers who yearn for a larger eyeport. The cutout is taller than the standard formula version
Kevlar Multi Sandwich Fiber Composite
Same Snell 2010 Certification as the Carbon Helmet
M6 Nut Integrated to Interface w/ Head & Neck Restraint Systems
The ST4 is the first helmet in the world which has been fitted for use in F1 w/ integrated earmuffs. These earmuffs provide a significantly quieter environment for the driver by isolating the ear. The earmuff's unique shape ensures they stay in place without making the helmet difficult to take off or put on
Sizes Are As Follows: Small: 55 - 56 mm Medium: 57 - 58 mm Large: 59 - 60 mm Extra Large: 61 - 62 mm
