Brand: Zamp Manufacturer's Part Number: H76903FL Part Type: Helmets Product Line: Zamp RZ-36 Air Helmets Summit Racing Part Number: ZSC-H76903FL UPC: 873895032155 Helmet Type: Full Helmet Size: Large Snell-Approved: Yes FIA-Approved: No DOT-Approved: No ECE-Approved: No SFI-Approved: No Snell Rating: Snell SA2020 Helmet Base Color: Black Helmet Finish: Matte Fresh Air Compatible: Yes Helmet Primary Color: Black Helmet Graphic Style: None Helmet Shield Included: Yes Vented: Yes Removable Lining: Yes Circumference: 23.620 in. Hat Size: 7 1/2 Helmet Shield Color: Clear Visor: No Helmet Liner Material: Fire-retardant fabric Quantity: Sold individually. Zamp RZ-36 Air Helmets Zamp RZ-36 air helmets come with one round top air inlet accessory to run forced air. This lightweight composite fiberglass shell headgear offers superior fit and finish―and offers the best value on the market! RZ-36 air helmets include a removable and washable interior， enabling you to replace with a new liner due to harsh driving conditions or to create a custom fit. The Z-20 Series 3mm clear shield with tear-off posts use 12.25 in. banana-style tear-offs. Each helmet also has M6 inserts for head and neck restraints， and two holes on each side of the chin foam for radio or hydration. Order the size， color， and finish you prefer.