The Carve helmet is lightweight, highly ventilated, and offers super protection for mountain bikers. The MSB technology (a monocoque structural base at the base of the helmet that reinforces the perimeter for enhanced protection) along with a fully bonded back spread the shock of impacts, provide support, and enable the helmet to be lightweight. Highly inspired by the Exo-Nerv technology seen in earlier Louis Garneau helmets, the U-Bar technology is made with U-shaped plastic ribs that are folded 6 times. These ribs act like a complex exoskeleton that reinforces the helmet's structure. The Patented Spiderlock®« Pro Retention, hailed as one of the best in the cycling industry, allows the user to adjust the helmet with only one hand to ensure safety while on the bike.