X-Fifteen Diggia2 Helmet

Race-developed performance in Fabio Di Giannantonio's Diggia2 graphics

The SHOEI X-Fifteen Diggia2 is a premium full-face racing helmet for track-focused riders and street riders who want SHOEI's high-speed stability, race-developed airflow, and an unmistakable MotoGP-inspired graphic. Its AIM+ shell, CWR-F2R racing shield, and carefully engineered interior bring protection, clear vision, and a secure fit together in a purpose-built package.

What has improved

SHOEI developed and refined the X-Fifteen's aerodynamic shape in its wind tunnel, reporting improvements across aerodynamic performance measures. The ventilation system also advances airflow and cheek-pad cooling. The CWR-F2R shield system improves visibility, function, and performance over its predecessor, while its 3D injection-molded shape provides a distortion-free view across the eyeport.

Key features

• AIM+ shell: SHOEI's Multi-Ply Matrix AIM+ construction forms the helmet's outer shell. A multi-piece, multi-density EPS impact-absorbing liner supports its protective design.
• Race-developed aerodynamics: SHOEI used its wind-tunnel facility to refine the X-Fifteen's shape for high-speed performance and stability.
• Ventilation and defogging: Seven closable air intakes and six exhaust outlets are shaped and placed to promote airflow and negative-pressure extraction. Enhanced cheek-pad cooling helps move air around the rider's face. The Defogger Ventilation System helps clear moisture from the shield area.
• CWR-F2R racing shield: The shield's 3D injection-molded profile is designed for a distortion-free view. SHOEI states its shield systems block 99% of the sun's damaging UV rays.
• Emergency removal system: SHOEI's Emergency Quick Release System (E.Q.R.S.) is designed to help trained responders remove the cheek pads during helmet removal after a crash.
• Adjustable comfort liner: The 3D Max-Dry Custom Interior System II is removable, washable, adjustable, and replaceable for a personalized fit and easier care.
• Diggia2 colorways: TC-1 pairs the red and black Fabio Di Giannantonio-inspired graphic; TC-3 brings a yellow and red variation. Choose the matching image gallery for the graphic you want.

Safety and specifications

• Helmet configuration: Full-face
• Shell: Multi-Ply Matrix AIM+
• Shield: CWR-F2R racing shield
• Ventilation: Defogger Ventilation System with seven closable intakes and six exhaust outlets
• Liner: Multi-piece, multi-density impact-absorbing EPS and 3D Max-Dry Custom Interior System II
• Weight: 3.78 lb, as listed by SHOEI. Actual weight can vary by size and configuration.
• Certifications: DOT, Snell M2025R, and ECE R22.06, as listed by SHOEI for the US model
• Included: Breath guard, chin curtain, and anti-fog sheet

Size chart

Measure horizontally around your head with a soft tape, about 1 inch above your eyebrows, and move the tape slightly to find the largest measurement. Use the chart as a starting point. If you are between sizes, SHOEI recommends trying the smaller size first. A correctly fitted helmet should sit snugly, with the cheek pads contacting your cheeks, and should not move easily when fastened. Always confirm fit using SHOEI's fitment guide and helmet manual.

Fit note: A helmet's protective performance depends on correct fit. If possible, try the helmet on and complete SHOEI's rotation checks before riding.