HJC · i31 · Open Face
The HJC i31 Depe is an open-face motorcycle helmet designed for lightweight comfort and everyday practicality on the road. Its injection-molded polycarbonate thermoplastic shell is paired with an integrated dark smoke sun shield for quick glare control, making it easy to adapt as light changes during commutes or casual cruising.
Ventilation is managed through HJC’s ACS Advanced Channeling Ventilation System to keep air moving, while the Pinlock-ready HJ-43 shield and aerodynamic 3D shield design focus on clear vision and stable feel at speed. Inside, the MultiCool moisture-wicking, quick-dry liner uses removable, washable crown and cheek pads, and built-in grooves make it friendlier for riders who wear eyeglasses. Certifications: DOT.
Construction
Built around an injection-molded polycarbonate thermoplastic shell, the i31 uses HJC’s Advanced Polycarbonate Composite Shell design to balance a strong feel with lightweight wear. A nylon strap retention system keeps the fit secure for day-to-day riding. For reference, listed weight is 3.30 lbs / 1500 grams (approx, based on Size Medium Solid Color).
Shield
Up front, the i31 uses a Pinlock-ready HJ-43 shield and an aerodynamic 3D shield design. A pre-installed HJ-V12 dark smoke sun shield adds on-demand glare reduction without swapping the main shield. When it’s time to change shields, the Rapidfire shield replacement system is designed for quick, secure shield removal and installation.
Comfort
The MultiCool interior is made to wick moisture and dry quickly during warm rides. Crown and cheek pads are removable and washable to help keep the helmet feeling fresh over time and to fine-tune fit. Grooves for eyeglass wearers are built in to reduce pressure and help glasses sit more naturally while the helmet is on.
Shield
The i31’s visor setup focuses on flexibility for real-world riding conditions. It combines the Pinlock-ready HJ-43 shield with an integrated HJ-V12 dark smoke sun shield so the rider can manage changing light without stopping for a shield swap. The aerodynamic 3D shield design supports the helmet’s overall performance, while the Rapidfire shield replacement system is intended to make shield changes fast and straightforward when a different tint or replacement is needed.
Comfort
Designed as an open-face helmet, the i31 uses HJC’s Advanced Polycarbonate Composite Shell construction and is listed as DOT certified. Comfort details are built in for everyday use, including grooves for eyeglass wearers that help accommodate frames without creating hot spots. For additional fit and upkeep, the interior uses a moisture-wicking, quick-dry liner with removable, washable crown and cheek pads.
| Certifications | DOT |
|---|---|
| Construction | Injection-molded polycarbonate thermoplastic |
| Weight | 3.30 lbs / 1500 grams (approx, based on Size Medium Solid Color) |
i31 Helmet Manual (PDF) HJC Helmet Size Chart
Provided by HJC. Opens in a new tab.
