Simpson's Hybrid Pro Lite is SFI 38.1 certified/FIA 8858 2010 approved, and manufactured of high quality carbon fiber. The Pro Lite has been developed through extensive testing combining the patented Seatbelt Anchor System and the patent pending Side Stabilizing Gusset for unbeatable multi-impact protection. The compact design (7") requires no seat modification. The Hybrid Pro Lite offers excellent side-to-side movement. Dual end tethers are available as an upgrade. Custom sizing is available as an upgrade.