
Simpson
Simpson Hybrid S Head and Neck Restraint (FIA & SFI Approved)
from $1,299.95
Simpson Hybrid S HNR Device for Racing Safety
The Hybrid S from Simpson features a lightweight design using DuPont carbon/polymer construction and provides maximum comfort and maneuverability with superior strength. Simpson Hybrids come race-ready. The trusted low profile design disappears into the seat when worn and allows for easy in and out of the race car, eliminating the danger of becoming caught in other gear. The protection stays with the racer during multiple impacts, flips and rolls.
Simpson Hybrid S HNR Product Details
SFI 38.1 certification
Available with patent pending multi-tether system to enhance side to side movement
DuPont carbon polymer construction
Sleek, modern profile with defined wings for seatbelt containment
Select your size based on the size chart
Simpson Hybrid S 3-Point Head and Neck Restraint – Advanced Protection for 3-Point and Multi-Point Harness Systems
The Simpson's Hybrid S model 3-Point Head and Neck Restraint is the only head restraint on the market proven to offer protection with both 3-point OEM seat belts and multi-point racing harnesses. FIA and SFI approved when used with a 5-, 6-, or 7-point harness system, this innovative head and neck restraint device also meets FMVSS testing standards for compatibility with 3-point belt setups—making it the ideal solution for high-performance driving instructors, automotive test engineers, and track day enthusiasts who want next-level safety without needing to retrofit a full race cockpit.
Designed for superior protection in street cars and club racing vehicles, the Simpson's Hybrid S model features a low-profile, high-strength carbon fiber construction that won’t interfere with roll bars during emergency exits. Multiple load paths help dissipate energy in a crash, while the front-mounted buckle system eliminates bulky straps underneath, providing all-day comfort. Whether you're in a fully prepped race car or a manufacturer test mule, the Simpson's Hybrid S model bridges the gap between OEM safety systems and motorsport-grade head restraint.
Simpson Hybrid S HNR Product Highlights
SFI 38.1 certified with multi-point harnesses
FMVSS-tested and approved for use with 3-point OEM seat belts
Carbon fiber construction for strength, light weight, and comfort
Low-profile design for easier entry, exit, and roll cage clearance
Easy front buckle system—no bulky straps under the seat or back

Simpson
Simpson Hybrid S 3-Point FIA Head and Neck Restraint (with M61 Anchor)
$1,245.95
Simpson Hybrid S 3-Point Head and Neck Restraint(with M61 Anchor)
The Hybrid S Head Restraint is FIA and SFI approved (when worn with a multi-point harness system) and is tested and shown to be compatible with 3-point harnesses used by Car Club enthusiasts and High Performance Driving Experiences. This allows Driving Instructors, Auto Manufacturing Test Engineers, and others in cars with 3-point harnesses to have added protection.
We are pleased to offer this great option for increased protection to this sector of the market. Bear in mind, however, that on a racetrack the best protection we believe is a Full-Containment Cockpit System that includes a full containment seat, Snell SA2015 or FIA 8860 rated helmet, FIA or SFI approved head restraint, and 6- or 7-point racing harness system.
OPTIONS:
Select your size based on the size chart
M 61 Anchors
FEATURES:
FIA and SFI Approved with 5-, 6- and 7-point harness systems
FMVSS Tested for use with 3-point OEM belt system
High quality carbon fiber construction
Low profile, no high back to hook on the roll bars, etc. in emergency exit
Multiple load paths to dissipate head loads
Buckle attachment in front, no bulky straps underneath
INSTALLATION:
To use a Hybrid S with a 3-point seat belt system, the SAS (Seatbelt Anchoring System) is not used. (The SAS strap anchor loops hook into the buckle of a 5-, 6- or 7-point racing harness.)
Have the wearer put on the Hybrid S and get into the driver's seat. Follow the instructions on fitting the device to the wearer.
Engage the 3-point seat belt and sit in the normal driving position.
Have a helper apply gentle pressure to the top of the device, keeping the device stable during tether adjustment. The device should be in a comfortable position behind the driver’s back, against the seat cushion.
With the helper holding the device and the driver looking straight forward, hold the triangulated tether up to the anchors on the driver’s helmet. Adjust the side tethers so that the end fitting can be easily inserted into the helmet anchor without pulling down on the helmet. A comfortable adjustment on the side tether is to have about ¼” of slack in the tethers.
With the helper still holding the device down and the driver looking straight ahead, adjust the rear tethers so that there is ½” to 1” of slack. Test the amount of head movement by moving the head straight forward. The driver should have 1” to 2” of forward head movement before the slack is taken out of the tether. Remember when checking this not to rotate the head down; translate it straight forward. This should allow for plenty of head movement on track.
AIRBAG USE WITH HYBRID S:
No one should unhook or disable the airbag system installed by the auto manufacturer or their authorized installer. Outside experts in Detroit have confirmed this and require their test engineers to use the Hybrid S in conjunction with the airbag in a 3-point system. Simpson agrees that the airbag and Hybrid S work together to increase protection in frontal crashes.