This year, Atomic decided to take a new approach to their all mountain helmet design. The Four Amid Pro Helmet is the pinnacle of this, with sleek, street-inspired style, a comfortable fit, and protection you can ride in with confidence. Built with AMID, which stands for Atomic Multi-directional Impact Deflector, the helmet's defense systems are designed to absorb the force of angled impacts, while the Holo Core design incorporates a crumple zone that maximizes shock absorption.