The Troy Lee Designs A1 Classic MIPS Helmet offers unparalleled all-mountain protection, using industry-leading safety standards so you can ride the trails without compromise.Developed and refined specifically to provide the best impact protection, the A1 MIPS Helmet ensures that you're always ready to enjoy the trails. An innovative Multiple-Impact Protection System and EPS liner provide outstanding protection against angled impacts. If you're looking for the ultimate, fully-optimized trail helmet, then look no further.The Multiple Impact Protection System used in the A1 MIPS is an industry-leading and rigorously tested protection system that aims to reduce strain on the brain in angled impacts. The MIPS technology enables rotation of the head relative to the helmet structure upon impact, effectively reducing the harmful effects of impact to the head. If safety is your priority, then MIPS is the way to go.The A1 MIPS is made from a reinforced polycarbonate shell, integrated with an expanding polystyrene liner. This innovative design ensures that the helmet remains lightweight and well-ventilated with a 16-port airflow system, keeping you cool on the trails.Fully-adjustable cam-lock strap dividers allow you to fit the helmet to your own head shape, maximizing comfort and protection on every ride.With a three-year warranty and a variety of striking colorways, you can be confident that you're investing in a top-of-the-line helmet. Key Features:- Multi-Directional Impact Protection System provides protection against angled impacts- EPS impact liner maximizes impact protection while minimizing weight- Aerospace filament-reinforced shell- 16-port ventilation system for optimized cooling- Quick-dry comfort liner is removable and washable for long-term comfort- Specialized cam-lock strap dividers adjustable for different head shapes and riding styles- 3-year warranty