Simpson Hybrid S - SFI/FIA - M6 Anchors 4125CMDBU Sizing the REV is fairly

Sizing the REV is fairly simple if you use this handy chart

Hundreds of lbs under the SFI upper neck tension threshold

a valid proof of purchase will be required

Double Layer Nomex Knit Construction

Reversed Seams for Superior Comfort

Simpson Hybrid S - SFI/FIA - M6 Anchors 4125CMDBU Sizing the REV is fairlyThe Simpson Hybrid S Head Restraint is FIA approved 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 other cars with 3 point harnesses* to have added protection. We are pleased to offer protection to this sector of the market, however, Simpsons top concern is your safety. Simpson Racing Hybrid S