Alpinestars Vector Tech A1 MIPS Bicycle Helmet

The MIPS (Multi-directional Impact Protection System) is a low-friction layer inside the helmet that allows for a sliding motion of 10-15mm in all directions. This reduces the rotational forces transmitted to your brain during an angled impact, which is a common occurrence in mountain biking crashes.

Yes, the Vector Tech A1 is specifically designed to be compatible with standard eyewear. The internal shape and temple coverage are optimized to ensure the arms of your glasses don't interfere with the helmet's fit or cause pressure points.

The visor is fully adjustable, allowing you to tilt it up or down depending on your preference or the lighting conditions. It is also designed with enough clearance to accommodate most mountain bike goggles when you need to stash them on the front of the helmet during climbs.

To get the right fit, measure the circumference of your head just above your eyebrows. The Small fits 51-55cm, Medium fits 55-59cm, and Large fits 59-63cm. Once you have the helmet, the rear dial system allows for precise micro-adjustments to secure it to your specific head shape.

Yes, the interior comfort liner is fully removable and washable. It is also treated with anti-bacterial properties to help manage odor and hygiene after long, sweaty rides.

With 19 ventilation ports, including a reinforced front air scoop, this helmet is built for high-output riding. The airflow design channels air across the scalp to keep you cool, even during intense climbs or warm weather.