The streamlined profile is achieved through the new Passive Aggressive Venting system, a discreet yet powerful system that automatically manages airflow and temperature while in-motion riding, hiking or standing static. The overall look is finished with a slight brim and subtle lines for Seamless Compatibility with Giro goggles. The Terra MIPS® Helmet also features MIPS® technology, lightweight construction and the dialed-in fit of the In Form 2 Fit system for a barely there feel.
In-Mold Construction – In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets
MIPS® | Multi-Directional Impact Protection System – MIPS is a step forward in helmet design and can provide more protection in certain impacts. There are three main components to a MIPS-equipped helmet: the Interior Foam Liner, the Low Friction Liner and an elastomeric attachment system between them. In an angled impact, the elastomeric attachment system stretches to allow the foam liner to rotate independently around your head. The goal of this technology is to further reduce rotational forces.
Passive Aggressive Venting System – Clean linear exterior vents combine with ergonomic interior channeling create optimal airflow and temperature regulation. This auto-venting technology manages airflow and temperature regardless of activity level.
TPU Brim Vent – Subtle TPU injected brim works as the entry port for fresh air; it also aligns with Giro goggles to perform a Stack Ventilation function.
Stack Ventilation – Stack Ventilation was developed based on research showing the majority of the warm air that can cause fogging exhausts from the center top vent of the goggle. Aligning the Stack Vent in the helmet with the center vent of your goggles helps to keep them clear and fog free while maintaining total helmet and goggle integration
In Form™ 2 Fit System – The In Form 2 Fit System is lighter and lower profile than the original, making it even easier to dial in a custom fit in seconds - even with gloves on. An improved dial design provides up to 6 cm of adjustment plus enhanced stability.
Vertical Tuning – All Giro helmets with integrated fit systems feature Vertical Tuning. Vertical Tuning dials in how the helmet sits on your head for a perfect fit, eliminating gaper gap and creating a seamless lockup with Giro goggles.
Seamless Compatibility with All Giro Goggles – For optimal performance of both helmets and goggles, Giro products are designed to work together. Ensuring a seamless interface between helmet and goggles offers exceptional fit and dependable, worry-free function.
Compatible with Aftermarket Giro Audio Systems by Outdoor Tech (sold separately)
Compatible with All Aftermarket Giro Audio Systems
Removable Goggle Retainer
Women's Styling & Details
Helmet Size Chart
|SIZE (CM)||SIZE (IN)|
|S||52 - 55.5||20.5 - 21.75|
|M||55.5 - 59||21.75 - 23|
|L||59 - 62.5||23 - 24.25|
|XL||62.5 - 65||24.5 - 25.5|