INFORMATION   We are pleased to offer the Schroth Westfield II ASM harness, an FIA approved leading solution for Westfields. Westfield specific 4 point professional harness with bolt-in 3" shoulder belts and bolt-in 2" lap straps. RFR rotary buckle. ASM feature on shoulder strap (state l/h or r/h) and optional crutch strap facility. Available in black, red, blue or silver. Features # 3" Shoulder Straps # 2" Lap Straps # FIA Approved # RFR Buckle ASM  ASM ASM or anti-submarining offers a unique safety advantage for 4 point harnesses by reducing the risk of submarining (sliding underneath the lap belt) during frontal impacts. The inner shoulder strap contains an energy conversion system and it is therefore important to order the correct harness depending on which side of the car it will be fitted to. Regressive Force Release (RFR) Buckle  RFR Schroth's Carbon fibre reinforced buckle is unique as the force required to open the buckle decreases during operation, this means that no extended lever is required to conform with FIA regulations reducing the risk of injury or accidental release. Approximately 30% lighter than other products the buckle is also one of the strongest available The harnesses are sold individually.