Overview The Simpson Hybrid S is the only Frontal Head Restraint proven effective with 3-point harnesses. FIA- and SFI-approved, it also meets FMVSS208 standards through independent testing in collaboration with Detroit auto manufacturers. Designed for high-performance driving instructors, automotive test engineers, and other drivers who rely on 3-point harnesses, the Hybrid S delivers the critical safety advantages of head restraint technology. Testing has shown that, when paired with a Snell- or FIA-rated helmet and a 3-point harness, the Hybrid S significantly reduces neck tension compared to using a helmet and harness alone. While Simpson offers the Hybrid S as an effective option for 3-point seatbelt use, our highest priority is always driver and instructor safety. For maximum on-track protection, we recommend a Full Containment Cockpit System, including: A full containment seat Snell or FIA-rated helmet FIA or SFI-approved Frontal Head Restraint 5- to 7-point seatbelt harness system Features Compatible with 3-point belts Lightweight, high-quality carbon fiber construction Low-profile design—no high back to catch on exit Multiple load paths for optimal energy dissipation Front buckle attachment—no bulky straps underneath Ships race-ready with post clips Integrated seat belt anchor system Custom Female Fitment Available (Supply Measurements) Wearing your favorite racing suit or normal driving apparel, measure over your outermost layer. Your new Simpson Custom Female device will always be on the outside with nothing covering it. Measure just below the bottom of the bra all the way around. Fill in this number in inches (including fractions) or centimeters. Measure from the top of the shoulders over the breast to the bottom of the bra. Fill in this number in inches (including fractions) or centimeters. About Simpson Racing Since 1959, Simpson Racing has been the trusted name in motorsports safety. From racers to motorcycle riders, our products are built to deliver the perfect balance of comfort, performance, and uncompromising protection.
