Giro Adult Helemt Sizing
|X Large||24.5-25.5"||62.5-65 cm|
The Nine MIPS® helmet offers a wealth of features, including MIPS®, the custom tuning of the In Form Fit System, and Thermostat Control venting so your noggin doesnt get too stuffy. Experience the Nine MIPS® helmet for yourself, and youll see why its one of the most enduring and popular performance snow helmets available.Read more
Multi-Directional Impact Protection System (MIPS®) is a step forward in helmet design. 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.
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.
Stack Vent Technology
Our Stack Vent was developed based on research showing the majority of warm air that can cause fogging comes from the goggle's center top vent. Aligning the Stack Vent in the helmet with the center vent of the goggle helps keep it clear and fog-free.
For optimal performance of both helmets and goggles, Giro products are designed to work together, ensuring a seamless interface between helmet and goggle for an exceptional fit and dependable, worry-free function.