Brand: Stilo Manufacturer's Part Number: AA0700AF1T59 Part Type: Helmets Product Line: Stilo ST5 GT Carbon Helmets Summit Racing Part Number: SLO-AA0700AF1T59 UPC: 00090127394311 Helmet Type: Full Helmet Size: Large Snell-Approved: Yes FIA-Approved: Yes DOT-Approved: No ECE-Approved: No SFI-Approved: No Snell Rating: Snell SA2020 FIA Rating: FIA 8859-2020 Helmet Base Color: Carbon fiber Helmet Finish: Matte Fresh Air Compatible: Yes Helmet Primary Color: Carbon fiber Helmet Graphic Style: None Helmet Shield Included: Yes Vented: Yes Removable Lining: No Weight: 2.820 lbs. Circumference: 23.250 in. - 23.625 in. Hat Size: 7 1/4 - 7 1/2 Helmet Shield Color: Clear Visor: No Helmet Liner Material: EPS Quantity: Sold individually. Stilo ST5 GT Carbon Helmets Stilo ST5 GT carbon helmets are redesigned shells that optimize shell size， airflow， visibility， and weight， which means you get a better fit with more visibility in a comfortable-to-wear helmet. Plus， the carbon helmets are 50/60g lighter thanks to Stilo's Puro Super Smooth technology―a superior finish that removes the need for lacquer， and also saves weight. Stilo ST5 GT carbon helmets are available in a range of sizes， and all are Snell SA2020 and FIA 8859 certified.Features:* Two separate shell sizes for a better-fitting helmet that's lighter* Eye port on all ST5 helmets is taller than the previous ST4 * Much larger visor than previous models and opens past the line of sight* 3mm clear visor for the absolute best in protection* Use of ear bud-style earphones with an optional adapter* Integrated electronics jack is positioned far enough away from the HANS post anchor， making the use of the jack trouble-free， even when the HANS is worn* Wiring is all positioned safely and conveniently behind the padding to be transparent to the user* Standard ear cushions* Earmuffs provide a significantly quieter environment for the driver by aurally isolating the ear* EPS cheek pads provide the best in lateral crash safety， while retaining the functionality of the earmuffs to provide a comfortable aural environment for communication* The pressure upon the head can be adjusted by replacing the special foam rubber pads placed between the earmuff and the helmet* Earmuff's unique shape ensures they stay in place and do not make the helmet difficult to put on or take off* All Stilo closed faced helmets come ready for integrated electronics， air supply， and hydration or any combination of the three， and all integrate seamlessly with the ST5* M6 nut pre-installed for easy FHR Installation