Hybrid Sport Harness Sizing Chart

The Simpson Hybrid S is the only FIA- and SFI-approved head restraint specifically designed for use with 3-point harness systems. Validated through FMVSS208 third-party testing, the system significantly reduces neck tension under load compared to a helmet-only setup. The HYSMED11M61 model includes a carbon fiber shell, low-profile back design for clean exits, and a front-mounted buckle system. It ships with the M61 sliding tether anchor for secure helmet connection. Ideal for track day instructors, OEM test engineers, or any driver requiring compact, FIA-compliant head restraint without post anchors.

Simpson Racing HYSMED11M61 Features:

• FIA and SFI Approved
• Compatible with 3-Point Harness Systems
• Carbon Fiber Construction
• Low-Profile Shell with No High Back
• Frontal Buckle Attachment for Clean Fitment
• Seat Belt Anchor System Compatibility
• Includes Sliding Tether M61 Anchor
• Medium Size Configuration