Giant Liv Roost MIPS Helmet

MIPS, or Multi-directional Impact Protection System, is a low-friction layer inside the helmet designed to reduce rotational forces during an angled impact. It allows the helmet to slide slightly relative to your head, which helps protect your brain from the damaging forces often associated with mountain biking crashes.

Yes, the Roost features an extended lower shell design that reaches further down the back of your head than a standard road or commuter helmet. This extra coverage is specifically engineered to provide more protection for the occipital area during technical off-road riding.

The helmet uses a four-position rear height adjustment dial. This allows you to fine-tune the vertical position of the cradle on the back of your head, ensuring a secure fit that doesn't interfere with your glasses or ponytail.

The Roost is built with 12 oversized vents designed to maximize airflow. Because mountain biking often involves slower speeds where natural wind isn't as strong, these large vents are essential for pulling heat away from your head during demanding climbs.

The visor is integrated into the helmet's design to provide protection from sun, trail debris, and low-hanging branches. While it is functional, it is generally intended to stay attached to maintain the helmet's structural aesthetic and protective coverage.