Hybrid S Medium w/ Sliding Tether P/A FIA

The Hybrid S Medium with Sliding Tether P/A FIA by Simpson Safety represents the evolution of modern racing harness engineering, purpose-built for drivers who demand maximum safety without compromising comfort during extended track sessions or competition events. This harness integrates sliding tether technology with push-button adjustability, allowing drivers to fine-tune restraint geometry while maintaining FIA compliance. Whether you're upgrading a dedicated race vehicle, building a high-performance street car with track capability, or competing in sanctioned motorsports, this harness delivers the professional-grade restraint system that serious enthusiasts rely on.

The medium sizing accommodates a broad range of driver builds while the sliding tether design permits quick micro-adjustments without complete removal, a critical advantage during pit stops or between sessions when reconfiguration is necessary. The push-button adjustment mechanism (P/A) provides intuitive one-handed operation, reducing fatigue during driver changes and eliminating the need for tool-assisted modifications. Simpson's hybrid construction balances lightweight design—at just 3.2 lbs the complete assembly maintains minimal parasitic weight—with redundant safety architecture that exceeds FIA certification standards. The integrated tether system keeps webbing organized and prevents entanglement, while maintaining the harness geometry that experienced drivers expect for precise body positioning during aggressive cornering.

This harness suits drivers competing in FIA-sanctioned series, club racing programs, or building street-to-track vehicles where regulatory compliance is non-negotiable. Installation fits standard racing seat designs and integrates cleanly with most roll cage configurations and automotive interior layouts. The medium sizing works optimally for drivers ranging from 5'6" to 6'2", with the sliding tether ensuring proper shoulder strap geometry regardless of exact seat position. For mechanics and fabricators installing performance safety systems, this harness eliminates trial-and-error fitting while maintaining the adjustability that evolves with different drivers or seasonal setup changes.